Should you remove the restrictor screen? KTM EXC-F/Husqvarna FE-S

Jeff tested removing the restrcitor screen on the stock muffler.
GET RX1-PRO ECU: slavensracing.com/shop/get-rx...
Fastway/PMB End Cap: slavensracing.com/shop/spark-...
O2 Sensor Eliminator Kit: slavensracing.com/shop/o2-sen...

[@LethalFriendGamer]

Thanks for another informational video. Have a great day.

[@slaverace1]

Thanks, you too!

[@dirtberger4533]

Great info. Thanks.

[@philipsmith6152]

Good advise !!

[@slaverace1]

Thanks for watching!

[@jaywalk6628]

23 501S runs awesome fully stock, 90% single track.

[@slaverace1]

Whatever blows your skirt up works for me, but I prefer more HP.

[@BraappMalaysia]

if i put fmf slip on , on my 16 husqvarna fe350 do i still need to put a different ecu?

[@slaverace1]

Hello:
Probably, but you will need to make that determination depending on how it is running. If it is boggy, starts hard, fluctuating idle, runs hotter than before, decel pop are all signs of lean fueling.

[@hodaka175]

Hello I have a 2023 450 XCF w would getting another ECU boost my performance that much or would it be a waste of my time. Thanks

[@slaverace1]

The GET ECU will definitely boost the HP. Factory KTM uses them because they work very well.

[@Booki89]

What's interesting is in Aus the dealers remove and block the O2 sensor. Most even remove the screen. Have you tried that,?

[@neonalon]

Same here, my European FE350 had the lambda sond removed when it was new but the dealer left the screen installed though.

[@beverlytim]

Off topic.... Where can I go to ask a question about 2012 exc 500. phone ,email, which would you prefer?Thanks

[@slaverace1]

Call us at 719-475-2624 or email us [e-mail]

[@davidsalinas6084]

What about just a GET ecu to increase the fuel? You will need to get an exhaust too?

[@slaverace1]

On a dyno, the HP difference is very minimal between a stock muffler with the restrictor removed and the loud high flow aftermarket mufflers. I prefer the stock muffler with the restrictor removed.

[@ThisTall]

@@slaverace1this is good news! I like the hp but noise is a curse. Especially with a track kit in winter when you’re always on the throttle, the FMF pipes are so loud I can’t use my helmet coms properly.

[@Crust2013]

Nah mine runs perfect with a Akra slip on the 17 450 nice colour at the vent standard ecu too.

[@reeceg6058]

My 350exc 17model continuously flames out. Seen vids of people removing the spark arrestor from stock exhaust and it complete eliminates flame out

[@slaverace1]

Hello:
Flame-outs are from lean fueling. Any modification to the exhaust system that increases air flow will make the flame-outs much worse and the engine will constantly run too hot which causes premature engine wear. I have no idea what videos you watched but that information is completely backwards and incorrect. Also, the restrictor plate on the rear muffler outlet is not the spark arrestor. It is located several inches inside the muffler. If you want it to run correctly, you must purchase a Vortex slavensracing.com/shop/vortex-10-map-ecu-ktm-vortex/ or GET ECU slavensracing.com/shop/slavens-mule-athena-get-sx1-pro-4t-ecu-kit-for-ktm-hqv-gg/.

[@reeceg6058]

@@slaverace1 Thank you!

[@shaneporter4502]

Should I remove the butt plug on my 2023 ktm450xcfw I don’t want the performance to be terrible tho as I’m planning on riding on the road

[@slaverace1]

Hello: You must have taken a nice nap during the video.

[@ThisTall]

Did you even watch the video?

[@bhenderson7651]

Why no mention of tuners?

[@slaverace1]

We have plenty in stock. slavensracing.com/product-category/electrical/ignitionecu-components/

[@scarsman]

What are your thoughts on the Dynojet tuner with a good map? I know it's not going to match an ECU for potential, but good enough to fix the lean issues and run better than stock?

[@slaverace1]

Hello Scarsman
No offense, but I’m not a fan of piggyback tuners. They can help the lean issues but not fix them. You will be better off saving up a few coins and getting the real deal, not a Bandaid.

[@scarsman]

@@slaverace1
Thanks for the response! I appreciate your time!

[@carlosmengs]

Since when do they make a 500 excf

[@slaverace1]

2012

[@Gabrielmtbgopro]

so ,, isn't race ready then ...😐

[@slaverace1]

Really?

[@johnfryman4428]

KTM puts that in there - so no one will put a Banana in your Tailpipe

[@slaverace1]

Bananas are good for you.

[@andrewsoldan6050]

Not true, I have all restriction removed on my 2017 500 exc-f EU version and you don't need to change ECU at all.

[@slaverace1]

We are in the US. We don’t have EU models.

[@elvispusley3515]

EU? This is America Son. We eat steak not crepes.

[@TheElectroalejo]

This is internet, worldwide.

[@TheElectroalejo]

How do you remove it

[@kingcanmore]

@@elvispusley3515the frogs eat crepes not us lol