Why Not to Change Your Car's Muffler

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  • čas přidán 17. 05. 2018
  • Muffler explained and why not to change or modify the one that comes with your car's exhaust system. Why not to change your car's muffler with Scotty Kilmer. Muffler modifications and aftermarket mufflers. Stock muffler vs straight pipe vs muffler delete, which is better? The pros and cons to modifying your exhaust system and muffler. There are advantages to changing a stock muffler, but also a lot of downsides. If you haven't made any major engine modifications to your car and don't plan on reprogramming the car's computer, changing the muffler on your exhaust system isn't a smart idea. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.
    Thanks for watching!
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    This is the people's automotive channel! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. Or enter your own car to compete in the Car vs Car contest every Thursday. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.
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Komentáře • 6K

  • @scottykilmer
    @scottykilmer  Před 6 lety +186

    ⬇️Scotty’s Top DIY Tools:
    1. Bluetooth Scan Tool: amzn.to/2nfvmaD
    2. Cheap Scan Tool: amzn.to/2D8Tvae
    3. Professional Socket Set: amzn.to/2Bzmccg
    4. Wrench Set: amzn.to/2kmBaOU
    5. No Charging Required Car Jump Starter: amzn.to/2CthnUU
    6. Battery Pack Car Jump Starter: amzn.to/2nrc6qR
    🛠Check out my Garage to see what I use every day and highly recommend:
    www.amazon.com/shop/scottykilmer
    ► Subscribe and hit the notification bell for all new videos: czcams.com/users/scottykilmer
    Scotty on Social:
    Facebook ► facebook.com/scottymechanic/
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    Twitter ► twitter.com/Scottymechanic?lang=en

    • @user-yv7zs7ne7x
      @user-yv7zs7ne7x Před 6 lety +3

      luke saylor I agree

    • @dominicanbiker
      @dominicanbiker Před 6 lety +3

      Scotty Kilmer what if someone stole your whole exhaust system and I wanted to put a new system with flowmaster 40

    • @tommyw7
      @tommyw7 Před 6 lety +2

      Scotty, please bring back the "1, 2, 3, 4, fire up your engine" intro at the beginning of each video!!!!

    • @snider2588
      @snider2588 Před 6 lety +2

      Scotty i appreciate the link to Amazon about all the tools you use

    • @jonathansanchez6952
      @jonathansanchez6952 Před 6 lety

      Scotty Kilmer thats why you tune the car DUH

  • @scorpionwins6378
    @scorpionwins6378 Před 5 lety +9307

    Scotty's wife's Lexus= 42db
    Scotty's motorcycle= 110db
    Scotty's speaking voice= 190db

  • @craterrr
    @craterrr Před 3 lety +2733

    I was really thinking on putting a performance exhaust system on my car, and then I watched this video.
    Still gonna do it

  • @bpheta
    @bpheta Před 3 lety +1537

    Thanks Scotty... im going to remove my muffler now

  • @DanPellegrino486
    @DanPellegrino486 Před 4 lety +1226

    Imagine living near this guy?
    "Yeah honey, he's outside yelling at the camera again. I don't know he's revving up a motorcycle now? He's yelling more and waving his arms.

    • @NipponNostalgicTV
      @NipponNostalgicTV Před 4 lety +13

      HAHAHAHAHA

    • @jordanbuscema2719
      @jordanbuscema2719 Před 4 lety +4

      YES

    • @abexity4982
      @abexity4982 Před 3 lety +8

      🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

    • @jenw6009
      @jenw6009 Před 3 lety +4

      Lmao

    • @MFP2241
      @MFP2241 Před 3 lety +7

      Yeah he should get a muffler for that mouth of his... or a tune.

  • @tym6218
    @tym6218 Před 5 lety +3498

    One acid trip in the 60s and Scotty has been riding the wave ever since

  • @tyjones6568
    @tyjones6568 Před 5 lety +6683

    This guy doesn’t want us to do anything with our cars 😂

    • @robertoayala809
      @robertoayala809 Před 5 lety +94

      🤣

    • @johnharriel4485
      @johnharriel4485 Před 5 lety +327

      Rip your cats out man, they just the governments excuse to screw up gas flow. Do it man!

    • @jogmas12
      @jogmas12 Před 4 lety +35

      Ty Jones dude, just buy an old car!

    • @s.s.divakar7911
      @s.s.divakar7911 Před 4 lety +33

      This guy says correctly

    • @Munted1.4L
      @Munted1.4L Před 4 lety +145

      I mean, he does make it clear that we need to get a tune. That goes for any mod that relates to fuel or air. Intakes, exhaust and such all need a tune afterwards to get the most out of the particular mod.

  • @Jezzz9
    @Jezzz9 Před rokem +372

    With every mod I research or stumble across… this guy is always there to tell us not to 😂
    He probably has a point a lot of the time but what a buzz kill!

    • @benc2324
      @benc2324 Před rokem +17

      He has absolutely no idea what he is talking about.

    • @felixtavarez7769
      @felixtavarez7769 Před rokem +13

      He really is there every time I search a mod.

    • @heberaviles932
      @heberaviles932 Před 9 měsíci +6

      He’s just telling you to do it properly

  • @chris5306
    @chris5306 Před 4 lety +260

    Some people seem to think Scotty is completely against modding which I don't believe is the case I believe he is just trying to inform people that modding cars does have risks and draw backs that not everyone is aware of

    • @glasscannon4723
      @glasscannon4723 Před 2 lety

      Ppl have their egos far up their arse lmao

    • @MorebeatsTV
      @MorebeatsTV Před rokem +9

      We are fully aware we just don’t give af. It’s simple just tune your ecu, which is one of the main mods people do anyway

    • @senorbonbon
      @senorbonbon Před rokem +1

      @@MorebeatsTV tune your ecu ? explain?

    • @colecontos5001
      @colecontos5001 Před rokem +7

      When Scotty said piping your mufflers makes your car run poorly. You can tune for the new exhaust, so that it potentially can run even better than stock.

    • @senorbonbon
      @senorbonbon Před rokem

      @@colecontos5001 so I would need a tune for my catback exhuast I’m going to purchase soon?

  • @lemixxradiolemix871
    @lemixxradiolemix871 Před 5 lety +1860

    Rev your Engines, but quietly..

  • @Sakezaf
    @Sakezaf Před 6 lety +1394

    No muffler: 110dB, Scotty talking: OVER 9000!

    • @MohdAzylee
      @MohdAzylee Před 6 lety +1

      Levente Fazekas hhahah hes good

    • @BOSKILLZX
      @BOSKILLZX Před 6 lety +1

      Loooooool

    • @onemanarmyEST
      @onemanarmyEST Před 6 lety +33

      It must've taken a team of engineers to create the voice of Scotty Kilmer, he runs his mouth very loudly yet efficiently.

    • @tank0military
      @tank0military Před 6 lety

      Levente Fazekas 8753 14th565887800997 poo o877422 wer timeuo know c CVS l

    • @dmerced257
      @dmerced257 Před 6 lety

      haaa haaa!!!!!!!!!!!

  • @eliforbes4842
    @eliforbes4842 Před 3 lety +5

    The ending where he rings the bell is the best part of any of his videos🤣🤣👌literally perfect, damn minty I tell ya😂😂😂😂

  • @davethecow445
    @davethecow445 Před 2 lety +8

    I really appreciate the heads up! Im removing my muffler now!

  • @nelsonrodriguez2522
    @nelsonrodriguez2522 Před 5 lety +1874

    Watched this video yesterday.
    Installed a muffler today.

  • @mendocinorider
    @mendocinorider Před 5 lety +665

    Rev up your stock mufflers!!

  • @Mel1n1
    @Mel1n1 Před rokem +1

    I watched 14 seconds of this video and now I'm going out and straight piping every vehicle I own. Thanks Scotty for convincing me!

  • @0311tard
    @0311tard Před 4 lety +57

    I also had a catback straight pipe. It never ran bad, if anything it felt like it ran better. I felt a better throttle response and everything. My mpg never went down, never lost any power, nothing. Removing mufflers doesn’t do anything. But removing the cats in most cars does.

  • @mariofalz
    @mariofalz Před 6 lety +2608

    Next video: Why not to buy a car

    • @richardwhitaker4148
      @richardwhitaker4148 Před 6 lety +55

      mariofalz I'm dead. That is tooo funnyyyyy 😆😆😆🤣💀💀💀💀

    • @yamaha94O
      @yamaha94O Před 6 lety +4

      XD

    • @banker7308
      @banker7308 Před 5 lety +64

      Next video why not to put gass in your car

    • @JH-jm8ib
      @JH-jm8ib Před 5 lety +19

      Next video. Why not to piss off a police officer. Don’t speed and don’t mod your car illegally

    • @banker7308
      @banker7308 Před 5 lety +25

      Why not to clean your car 😂😂😂

  • @888TopGear888
    @888TopGear888 Před 6 lety +1539

    And then theres Scotty, who talks at 130 decibels.

  • @muaythai193
    @muaythai193 Před 3 lety +66

    You can change the exhaust without making it louder.
    For example install a true dual no crossover exhaust on a V8, and install two separate cats and two separate mufflers.
    That way your car didn’t get louder but it sounds much nicer because of the uneven firing V8 shining and showing it’s real character. 👌

    • @austinbishop7430
      @austinbishop7430 Před 2 lety +2

      I approve as a V8 owner. Most Ford come with true dual with H pipe.

    • @muaythai193
      @muaythai193 Před 2 lety +2

      @@austinbishop7430 for sound AND performance, h-pipe is the way to go. 👍

    • @robmen1402
      @robmen1402 Před rokem

      I mean his main concern isn't the sound but more that he claims that it ends up making your car actually run worse, not better.

    • @muaythai193
      @muaythai193 Před rokem +1

      @@robmen1402 That’s incorrect though.

  • @sarahendrix3132
    @sarahendrix3132 Před 3 lety

    Really cool you had a history lesson about the Reeves Bros. from Columbus, IN being the first to patent the muffler system in 1897! Indiana is my home state and I didn't know that so thanks for sharing!

  • @King88_8
    @King88_8 Před 6 lety +2062

    Scotty, youre loud, you need a muffler...😆😆😆

  • @BeefyWaffle
    @BeefyWaffle Před 5 lety +253

    I hear you loud and clear Scotty **saws off muffler**

    • @adamlummis7519
      @adamlummis7519 Před 2 lety +2

      Oh my god I died when you said this 😂😂😂💀

    • @dontknow2419
      @dontknow2419 Před rokem +1

      spends 700 on a magnaflow

    • @Nigriff
      @Nigriff Před 8 měsíci

      Scotty is louder than my straight pipes

  • @TheRugghead
    @TheRugghead Před 2 lety +7

    If Scotty couldn't talk me out of it,
    no one can

  • @montakims
    @montakims Před 10 měsíci

    Thank you Scotty, changed my mind about switching my exhaust as I don't know too much about tuning and adjusting fuel-air mixture ratios or anything.

  • @Angel-dn9sm
    @Angel-dn9sm Před 6 lety +307

    Pretty much he is saying tune car after exhaust....

    • @SI0AX
      @SI0AX Před 6 lety +32

      That is the perfect advice. Tune your car after any mod that changes engine performance. Even a damn intake. You otherwise wont get any benefit from it, and like he said, it will most likely make the engine run bad. I once installed a 3" intake when stock was 2.75". The check engine light came on with 2 codes. 1 code was about running too rich, the other code was about running to lean. So the tune was pretty much completely screwed up.
      Since I did my research, I had the ECU tuning software *before* I even changed the intake, so I was able to calibrate the MAF sensor and adjust the A/F ratio.

    • @konnj
      @konnj Před 6 lety +24

      Opening the exhaust will decrease engine power loss at the exhaust stroke and sends that lost torque to the crankshaft.
      This will not really change how the engine operates just makes it easier for it to work so less power is lost.
      99% of modern engines have self-adjusting ECU set to certain parameters mostly based on airflow, it's not until you change the AFR mixtures or timing that you need to tune the engine, not that you can't get any more power out of the engine with a tune however, factories tend to mass produce engines and ECU's, not really tuning them for each individual engine.
      Making it easier for the engine to work, like putting on a less restrictive air-intake or less restrictive exhaust does not generally require tuning because engines are tuned on a engine dyno without any air or exhaust restriction.

    • @letsroll2463
      @letsroll2463 Před 6 lety +5

      It all depends on the car, it is true if you want the full benefit of the mod that u will need a tune to go along with it. However, not all cars are universal I was able to get 40whp on full bolt ons with no tune NO troubleshoot codes. The video and commenters is vaguely describing mods as a whole, but after that 40whp turned into nearly more than double with a tune cycling through after awhile. Tunes do benefit turbo cars a lot though increasing the turbos output to the maximum psi factory limits on stock parts, but may risk the engine depending on the car.
      I do not even care about loudness so he is pretty much generalizing as i prefer to have it on the low, which is why i was kind of hesitant in changing the headers cause it does increase it ten-fold. However, with the mods i do get faster times and/or better gas mileage depending on how i drive it.

    • @bisterkding9249
      @bisterkding9249 Před 6 lety +2

      Bjorn, that's not true. There are numerous forums full of people warning that they have actually lost performance after installing a simple performance-oriented cold air intake. They were able to trace the problem back to the engine's air sensors- the wider intake ducts changed the density of and rate at which the air flowed into the engine, throwing off the air/fuel ratio.

    • @Adam2050
      @Adam2050 Před 6 lety

      Its a rant.

  • @Monkeyseemonkey79
    @Monkeyseemonkey79 Před 5 lety +534

    I wish Scotty would speak up. I can barely hear him.

  • @yurtledturtle6423
    @yurtledturtle6423 Před 3 lety +2

    Thank you scotty for informing me how to get pops and bangs out of my car ❤

  • @Smart.Potato
    @Smart.Potato Před 2 lety

    this is my first time watching Scotty and I'm already subbed!

  • @_AlejandroGonzalez_
    @_AlejandroGonzalez_ Před 4 lety +1425

    Was looking for a louder exhaust for my truck, found this video instead.
    Still looking for a louder exhaust

    • @jamesslossar3865
      @jamesslossar3865 Před 4 lety +7

      Alejandro Gonzalez what exhaust did you end up going with

    • @zachwagner1517
      @zachwagner1517 Před 4 lety +20

      Alejandro Gonzalez I got a flow master on mine

    • @jeezus1288
      @jeezus1288 Před 4 lety +12

      I’m with you brother 😂

    • @tonyboyd3783
      @tonyboyd3783 Před 4 lety +4

      Alejandro Gonzalez 😂😂😂😂😂

    • @hydeist0666
      @hydeist0666 Před 4 lety +2

      Im going for a greddy chambered muffler. Is that a good obe for bone stock engine?

  • @autohelix
    @autohelix Před 6 lety +140

    Too late I put a Cat-Back exhaust on everything I own.

  • @k1nigth
    @k1nigth Před 3 lety

    Excelente video amigo ... No habia pensado en esos detalles gracias

  • @sandywoolf2883
    @sandywoolf2883 Před 2 lety +2

    The video is great. It is very good to install the exhaust muffler on the car. I bought a pair of this renhotec brand muffler not long ago. After installing it for a while, it is still very good. It is recommended that if you are interested, you can install the muffler.

    • @Jac735
      @Jac735 Před 2 lety +1

      Older cars I would definitely do this newer cars its best to leave alone unless you do minor things here and there for daily driving I recently got a vibrant street power muffler and just have the axleback pipe didn't mess with my cat or nothing still sounds good I learned my lesson on my wannabee build up car when first getting into the scene 😆 🤣 😂

  • @johnponce8759
    @johnponce8759 Před 5 lety +473

    Check engine light should not appear as long as the catalac converter isnt messed with

    • @TheSMARTREY
      @TheSMARTREY Před 5 lety +7

      i removed mine and no check engine lights comes up, had my catback custom made by a philippine racing team. so it's not always the case

    • @renechimborazo7166
      @renechimborazo7166 Před 5 lety +3

      @Camaro SS what about when you need to pass inspection

    • @zolttech3907
      @zolttech3907 Před 5 lety +11

      rene chimborazo it won’t pass

    • @buschg7106
      @buschg7106 Před 5 lety

      Yep

    • @Officertack
      @Officertack Před 5 lety +6

      Bullshit. it comes on if you change the air intake as well

  • @kocaine_03
    @kocaine_03 Před 6 lety +849

    Scotty complains about every modification. He should just drive a stock Prius 😂

    • @baranUtube
      @baranUtube Před 5 lety +36

      High Diamond exactly, this fckn guy.

    • @kocaine_03
      @kocaine_03 Před 5 lety +1

      BooostedGTI 😂😂

    • @ej_tech
      @ej_tech Před 5 lety +42

      He drives an old Celica. A Prius has added complexity. Complexity he doesn't want to deal with.

    • @dirtycommtroop
      @dirtycommtroop Před 5 lety +34

      Scotty is absolutely right though. A lot of people put in new intakes and mufflers but they don't get it tuned. You need to tune it!

    • @nashvilleoutlaw
      @nashvilleoutlaw Před 5 lety +6

      Derek K i put a flowmaster on my truck 15 years ago and never got it tuned. I did get an extra 2mpg better fuel economy though.

  • @bodyshotjake7475
    @bodyshotjake7475 Před rokem +5

    This may have been true with older vehicles and may be true for some newer vehicles. However, there is plenty of dyno prof that the stock ECU tunes can still compensate and will absolutely make more power with a free flowing exhaust. Will it make more power with a tune? Of course.

  • @mcintosh.motors
    @mcintosh.motors Před rokem +21

    Really depends on the car.. most newish cars’ ECU can adapt to air flow changes such as a full catback exhaust. Changing out cats though can be a different story

    • @jaskajokunen3716
      @jaskajokunen3716 Před rokem +2

      Removing cat usually causes the car to run slightly richer but not much. The rear o2 sensor doesn't really affect it that much.

  • @madmotorrepair1748
    @madmotorrepair1748 Před 6 lety +1377

    Loud Pipes Saves Lives

    • @brianshaggy
      @brianshaggy Před 6 lety +38

      Mad Motor Repair only for motorcycles, can't be said about cars when you're on a steel cage and you're not almost invisible to old grannies and texting teenagers on thier 3000lbs bullet vehicles, the only reason a car should be loud is because it's fast, i hate seeing 200hp cars sound like uther garbage

    • @suckmydingledong
      @suckmydingledong Před 6 lety +11

      BrianShaggy074 you know you can barely hear them until they pass you anyways

    • @Chubbycat747
      @Chubbycat747 Před 6 lety +46

      There are no scientific studies to back up your claim. Loud pipes are for obnoxious douchebags.

    • @brianshaggy
      @brianshaggy Před 6 lety +46

      Captain Shark you know there's no scientific studies to back up your claim, loud pipes save lives

    • @brianshaggy
      @brianshaggy Před 6 lety +10

      JulmustKebab but you can hear us when we're around you, it should be loud enough to were i let you know I'm next to you but not too loud to wake a whole neighborhood up

  • @TheJoe999Man
    @TheJoe999Man Před 6 lety +523

    Scotty just burned ricer kids low key

    • @xXMetalforever1994Xx
      @xXMetalforever1994Xx Před 6 lety +19

      Sir Brellin this is only for "modern" cars, ricers often don't drive "modern" cars.

    • @JeepTJWheelin
      @JeepTJWheelin Před 6 lety +70

      Sir Brellin Well someone had to. Ricers with farts cans should be taken off the road permanently.

    • @mean3g161
      @mean3g161 Před 6 lety +20

      Sorry but a new exhaust system is a performance mod not a cosmetic enhancement.

    • @GearHeadSX
      @GearHeadSX Před 6 lety +4

      2JZ FTW its actually both

    • @alphatrion100
      @alphatrion100 Před 6 lety +14

      Modern cars meaning 90's and newer.
      Carburators started disapearing in the 80's

  • @neauxmad1048
    @neauxmad1048 Před rokem

    Love how he talked about tunes but still said don't do it. Love this man 😂.

  • @hunterskeens2642
    @hunterskeens2642 Před 3 lety +5

    Changed my muffler bout 7 months ago. Still no check engine light. Still runs fine. And sounds great. Plus my O2 sensors are before my muffler so its not messing up anything with the computer cause its stock until the muffler

  • @billyfreeman5803
    @billyfreeman5803 Před 5 lety +300

    Paused video to comment before watching. Let me guess.....
    Scotty does his thing where he goes "the engineers of the vehicle knew what they were doing"
    UPDATE: I was right

    • @WeekendWarrior604
      @WeekendWarrior604 Před 4 lety +7

      Nailed it! 😂👍

    • @reaganharder1480
      @reaganharder1480 Před 3 lety +30

      The problem with that argument is that the engineers who designed the thing were concerning themselves with a lot of factors many car guys just don't car about. Like being quiet, for example.

    • @jesusislord4060
      @jesusislord4060 Před 3 lety +11

      @@reaganharder1480 True. The engineers had to design the exhaust system with emissions in mind but where I live has no emission laws so it's okay to remove all this restricting crap.

    • @johnchandler1687
      @johnchandler1687 Před 3 lety +5

      When you go to free flowing exhaust you may gain top end horsepower, but you lose torque in lower RPM range. Not a concern with a hotrod, but if you really use your truck for working and hauling torque is more important. Also, a builder of performance engines tried changing the valve angles. Found that going from standard 45 degree to 35 degree lost approximately 5% of horsepower, but gained over 10% torque. Torque is what makes vehicles go. More horses at 4000 RPM doesn't do you any good in normal driving unless you're passing some one. If you just want loud install cutouts and go whole hog.

    • @tluva1020
      @tluva1020 Před 3 lety

      Let me guess, you watched it, and then edited it.....
      Yep, I was right

  • @honk3x
    @honk3x Před 4 lety +331

    This guy is that grandpa that tells you to keep your car all stock straight from the dealership 🤦🏻‍♂️😂

    • @simdoran8516
      @simdoran8516 Před 3 lety +27

      A car is actually worth less when you modify it from original spec.

    • @honk3x
      @honk3x Před 3 lety +53

      Sim Doran yeah if you return it to the dealership.

    • @Sloimer
      @Sloimer Před 3 lety +11

      @@simdoran8516 And?

    • @mrjpz
      @mrjpz Před 3 lety +21

      @@simdoran8516 that's not true at all actually havent you heard of 100k supras?

    • @fordshuler1525
      @fordshuler1525 Před 3 lety +15

      @@simdoran8516 depends on what it is, if you bulletproof a 6.0L it'll sell for more because you've fixed all the issues that it had at original spec 👽

  • @parvariramin
    @parvariramin Před rokem +1

    ‏Thanks for the great video, I put a gasket on the connection between the muffler and the exhaust pipe for a better sound. It can be said that this part of the exhaust is leaking now, will it damage the car engine in the long run or not?

  • @joeblow4566
    @joeblow4566 Před 2 lety

    Thank you Scotty I have a 2019 Honda Civic sport I thought about changing the exhaust system I'm going to leave it alone appreciate all you do my former Army veteran brother peace out

  • @DazTheMe
    @DazTheMe Před 6 lety +75

    Legend has it that Scotty tried to measure how many decibels his intro was and the sound metre just showed "Error"

  • @pyroaficionado867
    @pyroaficionado867 Před 6 lety +625

    Now the teenage honda drivers are TRIGGEREDDDDDD

    • @claudedottin1312
      @claudedottin1312 Před 6 lety +9

      Pyro Aficionado lol mine is tuned

    • @DeadlyBrianX
      @DeadlyBrianX Před 6 lety +7

      Pyro Aficionado
      See I drive an accord with VTEC stickers and vortex fins on top. This was my next plan but poppa scotty always there for us.

    • @claudedottin1312
      @claudedottin1312 Před 6 lety +1

      DeadlyBrianX if you know what vortex generators work they may or may not work on your car to work with a spoiler and depending on the downforce generated on your car

    • @DeadlyBrianX
      @DeadlyBrianX Před 6 lety +2

      Claude Dottin
      No I meant changing the muffler was my next plan. My Ricer build is what I told you and it works so well.

    • @Hikojiro
      @Hikojiro Před 6 lety +3

      Why Honda?

  • @austinament7647
    @austinament7647 Před 2 lety +2

    This guy has me convinced he’s all about stock cars (which isn’t a bad thing)

  • @jacobwilliston
    @jacobwilliston Před rokem

    This was really helpful thank you

  • @Godzukidan
    @Godzukidan Před 6 lety +186

    How are they going to hear us rev our engine's with stock mufflers. 🚘🙉

    • @dandearman2871
      @dandearman2871 Před 6 lety +2

      I think watching the tires smoke is more impressive than listening to the engine rev.

    • @universalmind7007
      @universalmind7007 Před 6 lety +2

      Exactly lol I just installed a exhaust system on my mazda 6 and I think it drives more aggressive

    • @lordcxm_7th747
      @lordcxm_7th747 Před 6 lety +1

      😂😂😂😂 I’m crying 😭

    • @lordcxm_7th747
      @lordcxm_7th747 Před 6 lety +5

      Straight pipe lifestyle 😁

    • @streetcargarage5743
      @streetcargarage5743 Před 6 lety

      Godzukidan 😎😎 I agree

  • @garymason2815
    @garymason2815 Před 5 lety +407

    Most ECU figure out the new airflow pretty quick and compensate for it loud pipes save lives

    • @missingremote4388
      @missingremote4388 Před 5 lety +13

      Need at least a Rez ( resonator muffler )

    • @eduardodiaz5762
      @eduardodiaz5762 Před 4 lety +26

      It does save lives, better acceleration response as well to Swerve the haters 😁

    • @inbredjesus9188
      @inbredjesus9188 Před 4 lety +4

      @Philip Turner my muffler fell off, I get the funny type of attention which I find funny

    • @Levi-qb2uf
      @Levi-qb2uf Před 4 lety +19

      @Philip Turner you say that like you were never young

    • @ariskaitamialastakagela9187
      @ariskaitamialastakagela9187 Před 4 lety +11

      Yes..... actually new exhausts like that give you more horses on higher rpm by taking those horses from lower or the opposite,so scotty is wrong

  • @TheSupart91
    @TheSupart91 Před 3 lety +1

    Ever since scotty has been adding memes .....been having me rolling🤣😂

  • @CiscoCheang
    @CiscoCheang Před 3 měsíci +1

    I put a Borla axle back on my ND Miata a year ago. Love it.

  • @slammedek9458
    @slammedek9458 Před 5 lety +287

    Basically dont even put a sticker on your car because he'll have a reason why 😂

    • @OverlandOne
      @OverlandOne Před 5 lety +57

      Stickers on your car, especially the ones like STP, can mess with your computer and throw off the air/fuel ratio giving you even worse performance than you had before putting that sticker on. Also, stickers are illegal in some states and your car will fail inspection. The engineers that designed your car did not design it to run correctly with stickers.

    • @pxndxlunx5821
      @pxndxlunx5821 Před 5 lety +18

      @@OverlandOne and that's getting scott free, if you have bad luck, those stickers will decrease your hp and even kill the engine. They wear out the valves and the pistons real fast.

    • @biguwus9773
      @biguwus9773 Před 5 lety +5

      @@pxndxlunx5821 Scott Free

    • @jordansheppard6643
      @jordansheppard6643 Před 5 lety +5

      it can mess with ur paint

    • @Imakebootysclap
      @Imakebootysclap Před 4 lety +10

      I got floor mats for my 2016 forte5, Scotty was not pleased, came up with a reason why that would fry my piston rings at 80k miles and void my warranty :P

  • @gmugrumbach
    @gmugrumbach Před 6 lety +28

    The sobbing girl cartoon for the "sensitive" system hahahaha! Oh Scotty.

  • @Alphatales007
    @Alphatales007 Před 2 lety

    You’re a legendary mechanic!!

  • @KennyAlvey-pq2bz
    @KennyAlvey-pq2bz Před 11 měsíci

    Scotty, you’re a fnk genius. I love you man.

  • @vteckicksin4576
    @vteckicksin4576 Před 6 lety +83

    *HONDA guys Triggered*

    • @AnotherYoubue
      @AnotherYoubue Před 6 lety

      I didn’t it, just truth most wannabe Honda guys dont know jack

    • @witherspoon1995
      @witherspoon1995 Před 6 lety +3

      That's no hornets nest, that's V-TEC

    • @Patrick94GSR
      @Patrick94GSR Před 6 lety

      My Integra still has the original 24 year old muffler still fully intact.

  • @JLin576
    @JLin576 Před 6 lety +42

    Just say NO to FART CANS!

    • @jimallen1485
      @jimallen1485 Před 6 lety +1

      Here in Panama, we call them Fart Boxes... But I agree with 100%

  • @AlainHubert
    @AlainHubert Před 3 lety +19

    According to this guy, engineers design perfect cars and we shouldn't do any mods to them. What he neglects to mention is that engineers are also restricted by governmental restrictive emissions laws and rules that don't allow engines to breathe freely. That's exactly what happened in the mid-seventies when engines suddenly lost hundreds of horsepower for the same size. It's like for a human to go biking with a scuba diving mask on.

    • @rs72098
      @rs72098 Před 2 lety

      I disagree. Even if that were the case, the engineers still designed the system around current stock exhausts. So modifying them doesn't improve much. You're better off putting an entire modified racing engine if you want engineers who are solely after horsepower. Most modern vehicles are designed around fuel economy. It's more like a human going diving in water with a scuba mask on.

  • @kestrel0389
    @kestrel0389 Před 2 lety +4

    I was thinking of doing it for better sound but now I know there’s a slight power gain; I’m definitely doing it!

  • @cullenmcnamara5518
    @cullenmcnamara5518 Před 4 lety +103

    Watched this video yesterday, today took my mufflers off car sounds fantastic runs better no engine lights 👨🏼‍🔧

    • @silverrain99205
      @silverrain99205 Před 4 lety +24

      Mechanik

    • @jesusislord4060
      @jesusislord4060 Před 3 lety +5

      Honestly its only okay to remove your muffler if you tune your car to compensate for more air flow or else like Scotty said it will run worse as there is less fuel than air.

    • @SpookyDaScary59
      @SpookyDaScary59 Před 3 lety +4

      @@jesusislord4060 recommended for 90+ 110 octane cars unless you want to smell like rotten eggs everywhere you pull up

    • @jesusislord4060
      @jesusislord4060 Před 3 lety

      @@SpookyDaScary59 Wdym? Why?

    • @SpookyDaScary59
      @SpookyDaScary59 Před 3 lety

      @@jesusislord4060 high octane burns off almost 100% so you won’t need muffler or cat, but my Ford will stink the place up on unleaded

  • @liambryant5150
    @liambryant5150 Před 5 lety +166

    I like how he makes tuning your engine sound more complicated than it is

    • @davidridley571
      @davidridley571 Před 2 lety +8

      But to normies tuning is basically black magic😂

    • @Jessehermansonphotography
      @Jessehermansonphotography Před 2 lety +15

      Real tuning is.

    • @senorbonbon
      @senorbonbon Před 2 lety

      @@davidridley571 noob question, So tuning is the move then changing the exhaust

    • @ArcYT
      @ArcYT Před 2 lety

      @@davidridley571 yes

    • @shaneomac5074
      @shaneomac5074 Před 6 měsíci

      Tuning is incredibly complicated, that’s why a lot of professional tuners specialize in one type of car because it’s so complicated, it’s not like adjusting an old carburetor

  • @majidabdurrahim5069
    @majidabdurrahim5069 Před 2 lety +1

    i have a 2001 lexus rx300 they said i need a new muffler my engine light comes on should i get one or is it still drivable for now?

  • @mattcoloris9647
    @mattcoloris9647 Před rokem

    I love your videos you helped me alot actually
    (2001 4.7 dakota with duel straight turn down pipes)

  • @Cliffjumper
    @Cliffjumper Před 6 lety +67

    "Modern cars are very sensitive"
    Shows girl crying🤣🤣🤣
    I love your humor Scotty🍻

    • @bearing_aficionado
      @bearing_aficionado Před 6 lety +2

      Cliffjumper that was savage on his part. Too bad he didn't show a crying ass liberal dude with pink hair and wearing a dress.

    • @earlibee
      @earlibee Před 6 lety

      "Polution" someone farting lol

    • @alainaguilar9938
      @alainaguilar9938 Před 6 lety +2

      Ryan Bond don't you mean most conservatives?

    • @bearing_aficionado
      @bearing_aficionado Před 6 lety +1

      Alain aguilar, um no. Since when do you see conservative guys with pink hair and wearing a dresses now do you?

  • @billthompson5644
    @billthompson5644 Před 6 lety +378

    I love that little no farting symbol, that was kind of funny.

    • @AyeSupQT
      @AyeSupQT Před 6 lety +6

      Got a laugh out of that too, Scotty's the man

    • @squidwardshouse67
      @squidwardshouse67 Před 6 lety +5

      Kind of? That was hilarious 😂

    • @ChristyOFaghan
      @ChristyOFaghan Před 6 lety +4

      i liked the one of a crying kid that appeared when he talked about the fuel ratio sensors being 'very sensitive'

    • @BigBarnV1
      @BigBarnV1 Před 6 lety +2

      I liked that one and the girl crying

    • @wowomg1980
      @wowomg1980 Před 6 lety

      lol Indeed

  • @rockhunter8483
    @rockhunter8483 Před rokem +1

    Thank you Scotty, now I understand what happened with my car. They put the loud muffler on and it hasn't run smoothly ever since!

  • @zoltangremsperger5361
    @zoltangremsperger5361 Před 3 lety

    THX mate for the vid!

  • @JackSadler
    @JackSadler Před 6 lety +72

    this video should be shown in schools across the world.. :P

    • @nsx1075
      @nsx1075 Před 6 lety +3

      Jack Sadler couldn't agree more

    • @jimmysapien9961
      @jimmysapien9961 Před 6 lety

      Hell yea why no

    • @majidaskari8306
      @majidaskari8306 Před 6 lety +2

      here you can see an example of someone who removed the muffler and disliked the video.

  • @benson2873
    @benson2873 Před 4 lety +66

    0:41 what’s he lookin at?

  • @obarojmusic961
    @obarojmusic961 Před 5 měsíci

    Thanks pops I love you, u just said it all i thought I was forward.. Sompeople jjst make you waste money for bad mods

  • @carlmcgee3602
    @carlmcgee3602 Před 3 lety

    Almost 4m subs, he’s doing something right. Thumbs up for the video.

  • @glennjunipermarshall531
    @glennjunipermarshall531 Před 6 lety +82

    I'm fine with changing the exhaust but make sure that it's not a fartcan.

  • @never0ps937
    @never0ps937 Před 4 lety +120

    " people talk loud when they want to sound smart right"
    - Squidward

    • @julianbennett4088
      @julianbennett4088 Před 4 lety +8

      neVer0ps “CORRECT”
      -Sheldon J Plankton

    • @TheHuskyK9
      @TheHuskyK9 Před 4 lety +14

      Except he knows what he's talking about. He just doesn't recommend it

    • @goosebee
      @goosebee Před 4 lety +1

      Ahahahaaaa 😂😂😭😂💛

    • @JosiahAndrewNavarro
      @JosiahAndrewNavarro Před 3 lety +2

      Imagine being a Nissan lover! Lol

  • @think_again82
    @think_again82 Před 2 lety +1

    Nice explanation

  • @RallycrossGT
    @RallycrossGT Před 11 měsíci

    thanks for this video. I was about to put one of those loud mufflers on my Honda Fit RS...

  • @Kodiak97x
    @Kodiak97x Před 6 lety +123

    Invalid, my 5 cylinder needs to sound like a rally car

    • @geckog35
      @geckog35 Před 6 lety +6

      SGKatrox lol Audi Quattro sounds

    • @bmoore7402
      @bmoore7402 Před 5 lety +1

      Hypesoul so what your saying is you want a camaro that doesnt blow head gaskets?

    • @zebrahead32199
      @zebrahead32199 Před 5 lety +1

      indeed

  • @rongamblin2107
    @rongamblin2107 Před 6 lety +3

    I wish kid's would learn from you Scotty... I wasted so much money on headers and loud mufflers Ahh but then to quote the lyrics from an old Byrds song... I was so much older then ... I'm younger than that now. Thanks Scotty.

  • @kravmaga7070
    @kravmaga7070 Před 3 lety +1

    Hey Scotty, HAs the channel ever did a dual exhaust versus single challenge/test?
    i just got a 84 cutlass with horrible sounding dual 2" exhaust with red glasspack bottles and wondering if it would sound better as in more rumbly with one single 3" which will also flow better since one 3" pipe is about 7 sq cm versus 2 x2" =6.28 sq cm?
    or can that smaller 2" dual setup scavenge better and keep low end TQ versus a big single which may gain high rpm hp but sacrifice about the same amt of low/mid range TQ
    to make the question even harder, im currently running the stock 305 SBC but already bought a used 2003 5.3L LS which will double the stock 305hp [nevermind all the ponies that escaped that 305 barn in last 37 yrs, lol. ]
    SO i dont wanna spend any more than neccessary on this dual system if im gonna upgrade to a bigger dual or bigger single exhaust for the LS motor in near future

  • @johng8355
    @johng8355 Před 3 lety

    How do you feel about Performance Exhaust tips? I k now they will only give nicer look and a Slightly deep noise, But do you think there will mess with stuff?

  • @racers115
    @racers115 Před 4 lety +34

    When you said you went to the Indy racing and was partially deaf for a days after I know what you mean. That's what it's like when I watch/listen to one of your videos.

  • @jeandufresne9225
    @jeandufresne9225 Před 6 lety +327

    If I wanted a quiet car. I would have got a prius. I do it cause I want my car to play the song of it's people.

    • @gooz0mbie
      @gooz0mbie Před 6 lety +28

      jean dufresne if you have a Honda I swear...

    • @jeandufresne9225
      @jeandufresne9225 Před 6 lety +20

      I don't. lol But I wish I did because they are cheap and easy to modify. If you ever have spare time, check out boostedboiz channel on CZcams.

    • @gooz0mbie
      @gooz0mbie Před 6 lety +2

      jean dufresne they are garbage cars. I’ve seen that channel

    • @jeandufresne9225
      @jeandufresne9225 Před 6 lety +24

      gooz0mbie Why do you think they are garbage?

    • @Zordy21
      @Zordy21 Před 6 lety +22

      I may not be a fan of Honda's but they are far from junk. IMO Honda's are better than Toyota because they last forever but they aren't insanely expensive to repair

  • @aidenh_
    @aidenh_ Před 11 měsíci

    I love Scotty. I also love my roush axlebacks that just came in

  • @AaronBilger
    @AaronBilger Před 3 lety +1

    i got an aftermarket muffler so its more of a aggressive sound but the car has always idled up and down a little the tach doesn't show that small change but i do hear it. done it before the exhaust was done and still does it after but i wonder if it has anything to do with the air fuel sensor. not the o2 sensor the the one thats in the air cleaner of newer cars. i never changed it when i had a new engine and transmission put in.

  • @sfg77dfjuhfg89
    @sfg77dfjuhfg89 Před 6 lety +14

    I like the throaty sound and smoother acceleration in power of my Magnaflow performance exhaust system.

  • @0669249
    @0669249 Před 5 lety +236

    Scotty, you're too old for this. Take a breath while you realise modern ECU's are perfectly able to re-tune themself to new AFR after MINOR mods like catbacks and intakes

    • @pauldaniel6208
      @pauldaniel6208 Před 5 lety +58

      Well said. Scotty's ignorance on this topic is obvious, as many modern cars show a decent increase in power with just and intake and exhaust, without an ecu tune. When one actually tunes properly, the gain can be substantial. There is an entire industry based on doing this and have dyno numbers to prove it, not just the rantings of an old man 😉

    • @TeeroyHammermill
      @TeeroyHammermill Před 5 lety +13

      >Korben Dallas: You do realize that ECU's are programmed to be in compliance with EPA guidelines don't you? It'll retune to stay in compliance, usually resulting in a leaner running engine.

    • @0669249
      @0669249 Před 5 lety +15

      @@TeeroyHammermill yes I know, hence why I said MINOR mods. Some ECU got more latitude than others and I think it's simplistic to say that every mods will harm every car lol.

    • @zacharyriley4122
      @zacharyriley4122 Před 5 lety +11

      Korben Dallas can you tell me where scotty said “every mod will harm every car” or any equivalent statement? i heard him say that these mods were bad to do if done improperly and without tuning, but i missed the blanket statements...

    • @jeremiahginter1892
      @jeremiahginter1892 Před 4 lety

      Paul Daniel m

  • @nikhilpallut2341
    @nikhilpallut2341 Před 3 měsíci +1

    Every time i want to do a mod. i do my research on youtube and always i end up with that one video by scotty not to do it like damn. Anyway still gonna do it thanks scotty for the advice

  • @Chios82100
    @Chios82100 Před 2 lety +1

    You can modify whatever you want as long as you have the car tuned to your modifications. I have a Nissan Juke Nismo RS pushing 403 HP at 26psi no check engine lights, runs great, if I drive normally and when I turn down the boost to 16psi for normal driving I still get pretty good gas mileage. It's all about having your car professionally tuned by people that know what they are doing... And as for the sound, I have no catalytic converters I have a nice Magnaflow resonator and Magnaflow dual port exhaust they do a great job of muffling the sound, at idle it doesn't sound any louder then it did before with the Nissan OEM Nismo exhaust system.

  • @Kodiak97x
    @Kodiak97x Před 6 lety +261

    Next video:
    “Why cars shouldn’t be fun”

    • @Lrules364
      @Lrules364 Před 6 lety +25

      SGKatrox "why modern cars aren't as fun as 90s cars"

    • @kerwinwade1884
      @kerwinwade1884 Před 6 lety +1

      Lol

    • @jessewestover6652
      @jessewestover6652 Před 6 lety +66

      "Why the only car you should own is a bone stock mid 90s Toyota Celica"

    • @losdayz2894
      @losdayz2894 Před 6 lety +1

      Jesse Westover lmao

    • @NumbaOne
      @NumbaOne Před 6 lety +1

      you have to tune your exhaust then it would be fine to change it but if you dont tune it it will be just like he said in the video

  • @hanzgerberpresents
    @hanzgerberpresents Před 5 lety +92

    Scott Kilmer is my long lost father.
    Love you dad. Please send money.

  • @jamesalbrecht418
    @jamesalbrecht418 Před 3 lety

    Just put straight pipe in love it computer reset after after a few days runs great

  • @KingNess4k
    @KingNess4k Před 3 lety

    Every time I want to do sumn with or to my car, here calmed this guy telling me why not to lol

  • @pctshooter
    @pctshooter Před 5 lety +13

    I had a 1982 Mercury Lynx that had a huge muffler and a tiny tailpipe that would top out at 89 MPH. I had the muffler taken off and replaced with an ANZA angle cut resonator tip. The sound was great. I put one of those TURBO stick on placards on the hatch lid. Everybody swore it had a turbo with it backfiring and flaming. It would then do 125 MPH with no further mods. I loved that car to death!

  • @DreamHachi
    @DreamHachi Před 6 lety +204

    My 67 Chevy had a flow master on it but, it fell off somewhere. Hello straight pipes

    • @frankjdm4636
      @frankjdm4636 Před 5 lety +3

      Lol

    • @stevebbkny2394
      @stevebbkny2394 Před 5 lety +2

      Best comment yet

    • @cdshawn
      @cdshawn Před 5 lety +1

      Cracked Egg .....I hear you, Player!!

    • @justinl9677
      @justinl9677 Před 5 lety +1

      I hate it when my mufflers "fall off"! It seemed to happen to every truck I ever owned from age 16 until my late 20's. It always happened about the same time too, right after I got it...weirdest thing Ive ever seen! ;)

    • @anthonyrodriguez1953
      @anthonyrodriguez1953 Před 5 lety

      Hello flow masters muffler

  • @ChrisHowell870
    @ChrisHowell870 Před 2 lety

    Wow he really changed my mind looks like ill just go ahead and straight pipe my srt!

  • @barrybebenek8691
    @barrybebenek8691 Před 3 lety +2

    The anti-pollution system graphic is priceless. 😂🇨🇦

  • @MICKEY4356
    @MICKEY4356 Před 5 lety +110

    Nothing like a pair of Cherry Bomb mufflers on a V8 engine.

    • @piratepete-thetruthisforevery1
      @piratepete-thetruthisforevery1 Před 5 lety +3

      Yup, I had that set up plus headers on my 340 Duster...
      Thumbs up!👍🏼

    • @docholiday9786
      @docholiday9786 Před 4 lety +2

      I just added a cherry bomb on my 2014 Silverado and now I'm getting a slight rough idle

    • @y.bowcat7782
      @y.bowcat7782 Před 4 lety +7

      this is the most boomer comment I've ever seen

    • @gmax341
      @gmax341 Před 4 lety

      I want to either straight pipe or cherry bomb the muffler area but after a call to a shop I had work done at years ago, sadly I was advised against it. He claimed that I would lose performance especially during towing situations. Now I'm frustrated...

    • @tomsteere8904
      @tomsteere8904 Před 4 lety

      I had a 1979 monte carlo with a built 350 and put some old school glass packs from the 70's on it. That thing sounded awesome. One of the best sounding cars I've owned.

  • @markwheeler8775
    @markwheeler8775 Před 4 lety +10

    Great advice Scotty! I love your enthusiasm about cars!

  • @jsteve91666
    @jsteve91666 Před 3 lety +1

    So would it be a good idea to upgrade my c5 to the borla exhaust system, or will it be the most optimal to leave it stock?

    • @SlikLizrd
      @SlikLizrd Před 2 lety +1

      YES !! A genuine BORLA exhaust is an upgrade to ANY vehicle.
      Top dollar -- but you'll have the VERY BEST !!