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4-Stroke Exhaust4-Stroke Exhaust from Rocky Mountain ATV/MC
Exhaust systems in either full race or with tuneable spark arrestors and different tips to give you that perfect power output for either motocross or trail riding.
Latest UTV 4-Stroke Exhaust Reviews – You could win up to $500 for reviewing products!
Pro Circuit T-4 S/A Silencer
Robert in IL
noooaaaaa!!!!!power!!!!
i look for a pipe for about a month and i'm very happy i went with the pro circuit T-4. it is about 1/2 weight over stock. its sounds 100 times better then the stock unit and gave me that power bump i was looking for...
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FMF Q4 S/A Silencer
Daniel in AZ
Durabilty? Fit?
Great pipe for performance and sound. Bad fit. Ran it for 1.5 yrs now. All of the rivets have fatigued and broke off. Im guessing that the problem arose from the poor fitment to the bike.
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HMF Racing Sport Series Silencer
nicholas in OK
Sounds awesome!
This exhaust sounds great, installs easy, and has great power. I couldn't be any happier with this product.
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FMF Factory-4.1 Silencer With TI Mid-Pipe
RICK in UT
FMF 4.1 for KTM 250
WOW!! This exhaust makes my 2010 KTM 250 XCF-W run much better. More power at low and mid RPM and gains RPM's much quicker. The FMF muffler is 1 lb 3 oz lighter than the stock muffler. I borrowed a decible meter, stock muffler is 96-97 db, FMF is 98-99 db. The FMF is louder and has a much lower tone. It seems to make my bike run a bit hotter. Suggestion for RM ATV/MC: Change the picture on your website from a blue muffler to a silver muffler. FMF does make a blue anodized muffler. I thought I was getting/buying a blue muffler but RM ATV only carries the silver. No big deal as the silver looks fine, just a bit deceiving.
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Yoshimura RS-4 Stainless/Stainless Full System
CLINT in WY
Yosh exhaust
FIt and finish is top notch. Its a little loud for driver being as it exits on side
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Yoshimura RS-4 Stainless/Stainless Slip-On
Derek in CO
SaaaWWWeettt
Ok so this slip on was simple to install, just had to read the picture and make sure all the little washers and adapters were in the correct spot. But the best part. this machine sounds like it has some nuts now! I am very impressed with the look and sound of this slip on. I am very excited to see if there is any noticeable improvements with performance. For the sound, I personally do not like the annoying loud sound of aftermarket exhausts, so this Yosh is perfect for me. Deep throatie sound and shaves a couple pounds off the machine!
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