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4-Stroke Exhaust4-Stroke Exhaust

4-Stroke Exhaust from Rocky Mountain ATV/MC

It’s no secret that a properly selected aftermarket exhaust system can do wonders for your dirt bike. There isn’t an easier or faster way to add horsepower throughout your bike’s RPM range. When you want a new dirt bike exhaust system, Rocky Mountain ATV/MC is the best source around. We carry an extensive selection of dirt bike exhausts. Do you love FMF exhausts? So do we. Are you looking for a Yosh exhaust system? We’ve got several. How about a ProCircuit T-4 silencer? We carry it. Do you want a Moto Works exhaust? You’re in the right place. Interested in a Lexx MXe slip-on? Get it here at Rocky Mountain ATV/MC. If you own a 4-stroke dirt bike, a new exhaust system is a must have.

Whether you need a new muffler to boost your motocross racing performance or just a good silencer with a USFS-approved spark arrestor for enduro use, Rocky Mountain ATV/MC is the best place to find dirt bike exhaust pipes. We carry all of the leading brands: FMF, Yoshimura, Lexx, Pro Circuit, Motoworks and more. Exhausts are available in a variety of materials as well: titanium, stainless steel, aluminum and even carbon fiber. When you need a 4-stroke exhaust for your motorcycle, you can’t go wrong with these excellent mufflers and silencers. Whether you’re into motocross or just love a good trail, your dirt bike will really rip with these exhaust systems!

Latest Dirt Bike 4-Stroke Exhaust Reviews – You could win up to $500 for reviewing products!

  • FMF Power Core IV S/A Silencer

    FMF Power Core IV S/A Silencer

    Timothy in WV

    Dont ride without it.

    This pipe is essential. Combined with a powerbomb header, dave's mod, and some new jets get the best out of the old red drag. Sounds beastly too!

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  • Yoshimura RS-4 Stainless/Aluminum Slip-On

    Yoshimura RS-4 Stainless/Aluminum Slip-On

    Dexter in AZ

    Good

    everything fit perfect but did not come with a rubber spacer so had to buy my own to make it bolt on to my bike but other then that perfect. was very easy to install and very simple.

    Read All Reviews
  • FMF Power Bomb Header Pipe

    FMF Power Bomb Header Pipe

    Lane in SD

    Great buy

    Fits great, easy install, power gains. Can't go wrong with FMF

    Read All Reviews
  • FMF Factory-4.1 Silencer With SS Mid-Pipe

    FMF Factory-4.1 Silencer With SS Mid-Pipe

    Lane in SD

    wow

    Easy install, great sound, no problems

    Read All Reviews
  • HMF Racing Competition Series Silencer

    HMF Racing Competition Series Silencer

    Dominic in UT

    Don't forget the jets...

    All in all a great product. Plan on jetting your carb and tuning it. I advise getting your jets if you purchase it or you'll have to wait to ride and order them. I purchased the slip on And used it on my stock pipe, it has some leaks at the connections and is a very common problem i also suggest you research this on the web before you commit, there are a few fixes if you cannot afford the full system . Too sum it up it sounds great ,gives you more pull and definitely will piss off you neighbors on stage 3....and Mounted easily , The reason I only gave it four stars in the leaks and the clamps that come with the kit don't do there job.

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  • FMF Titanium Megabomb Header Pipe

    FMF Titanium Megabomb Header Pipe

    Brandon in SC

    Pricy

    This pipe is pricy and could only notice small amount of gains

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