Please select make, model and year4-Stroke Exhaust
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!
Cory in NV
First of all, I paired this up with the FMF Power Bomb exhaust header pipe. This system gets rid of the factory clamp for my bike, so it is a "direct fit" that holds it into place. I had troubles getting the two pipes to seed together perfectly. After about 45 minutes of mounting and un-mounting the pipes and spraying wd-40 at the contact points they finally slipped on and mounted up. Also, the muffler did contact my rear fender so I had to cut some of that away. Also, the FMF customer service line was extremely helpful. All in all it sounds mean, not necessarily louder, just meaner. I am satisfied with this product and Rocky Mountain delivered on time, with the cheapest price ($70) cheaper than anywhere else.Read All Reviews
Tim in CA
This FMF pipe is a lot lighter than the stock pipe and it lets the Husky breathe better for crisper response. Easy to install, fits great and looks great too!Read All Reviews
Mykel in Illinois
Let me just start off by saying that I immediately noticed the power gains with this header. I paired this with my FMF PowerCore4 slip on exhaust, and I left black marks across the entrance of my dad's shop when slowly taking off. I now have to flip my tire around because the sharp edges on my knobs are gone, and with this exhaust, my tire spins a bunch. The only thing that you need to watch out for is keeping your pants off the "Bomb" part when riding. It turns blue and looks cool and stuff, but will melt your pants no problem. Just happened to me over the weekend.Read All Reviews
Steven in NM
Glad I finally bought an exhaust for my raptor and very pleased that it was this one. Sound is great and it slipped on with out difficulty. This is what I wish my raptor sounded like when I first bought her back in 08. I only have a k&n intake and this exhaust for now and everything is running fine. During my first ride in the dunes definitely felt as if everyone could hear me out there.. HahaRead All Reviews