Free Exhaust Mod for Your N54 335i - DON'T USE A GOLF TEE!

This is a free mod that takes just a few minutes to do! No check engine lights, no codes, a lot of benefits!
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[@LukesHardware]

Just so you know this does raise a code on the car but its not something you will see from the car itself. If you use a scan tool, like a garage or dealer would, you will see the code.
This isn't an issue though, generally if you put it in for a service and forget the garage will call you and tell you there's a problem, you can just tell them what you've unplugged and they will plug it back in for the test. Nice and easy. I've done a similar thing on my 440i Gran coupe, unplugged the main lead to the actuator, no code in car, shows code on scan tool, no biggie if you know it's there

[@me54321000]

lol.. sounds identical.. I think the saying goes "nothing in life is free", something like that

[@JHenny88]

Thank you so much!! Worked amazing and I thought I had waste gate rattle!! This fixed everything

[@christiaanderyck2233]

are you referring to the metallic rattle that comes when starting the engine on a cold start?

[@lilgabriel0517]

@@christiaanderyck2233that’s from the little valve inside of the muffler. It is presumed to be to keep the car quieter when the engine is cold and on low RPM’s. Some think it’s for the car to warm up quicker as only one exhaust will be opened, not too sure but it is the valve inside the muffler making that sound. Wish I saw other videos and did some research before I replaced my muffler, wasted $500+ only for it to happen again and for my exhaust to now be crooked 🫠

[@dbnpoldermans4120]

Interesting, I would have expected the lci to be with N55 engine.
Could not really hear the difference, but a buddy also told me about this. I will have to try it myself!

[@RewindRacing]

Lcis are n54 until 2011! At least in the US!

[@jackf8417]

Both exhausts are open after 66 seconds anyway, so it appears to me that all this does is open both exhausts at start-up. I don't understand the purpose for doing this.

[@kmsti8677]

I'm sure it'll throw a STORED CODE and not a CHECK ENGINE LIGHT. I'm doing it anyways because my actuator is making embarrassing noises, so I'd rather have it open then to drive a BMW that sound like a 30-year-old beater on startup.

[@aidenadhikari8636]

Is it reversible? If I plug the thing back in does it go back to normal?

[@wrblue08]

Yes it does.

[@jackf8417]

So I removed the connector and it doesn't sound any different to me. It still smooths out and quiets down after the usual 66 seconds. Am I missing something? Anyone?

[@powertrain355]

Thanks brotha

[@tomisako8615]

Where is the connector located on the Z4 e89? Can't find it in any side of the boot?

[@average.m1ke]

It does throw a code. Unplugged with car off

[@whippinchicken4136]

I have a e93 n54 hardtop and I can’t find the same panel u have

[@jackf8417]

I have a 335is and just did this. No codes, but it doesn't sound any different to me.

[@luisthc2838]

Dose it affect the car in any way?

[@evojumpman8806]

Ima try this tmr morning

[@lifeclips3329]

I did this and closed it again now it won’t open

[@sonnyd3854]

Some cars do throw a code. Like mine.. Weird

[@masonblatz3843]

Did it go away?

[@nate2440]

What kind of code ?

[@bahrezkadir4494]

@@nate2440 i got a 30ff code but i don’t know if it is cause of that

[@VacidGaming]

@@bahrezkadir449430FF is boost leak, has nothing to do with this

[@diegopayromaniac6800]

works for a 330ci?

[@RewindRacing]

If equipped with active exhaust, yes. But I’m not sure that they are.