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  • FMF Power Bomb Header Pipe

    FMF Power Bomb Header Pipe

    Jason in WI

    The Best!

    Helps with keeping the sound down on my 400EX. Looks great, well built!

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  • FMF Q4 S/A Silencer

    FMF Q4 S/A Silencer

    Jason in WI

    The Best!

    I use this pipe with the FMF power bomb head pipe on my 400ex. It keeps the sound legal here in WI and still sounds great.

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  • FMF Wash Plug

    FMF Wash Plug

    Jason in WI

    Washing made easier

    Plug fits great and has a nice tight seal om my FMF Q4 exhaust

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  • FMF Factory-4.1 RCT Aluminum Silencer with Stainless Steel End Cap

    FMF Factory-4.1 RCT Aluminum Silencer with Stainless Steel End Cap

    John in AZ

    Improved Throttle Response

    Great fit and finish. Super easy to install with OEM header. Slightly louder but not too bad. I have the spark arrestor inserted for trail riding and the bike revs much quicker on the low end which helps acceleration. No noticeable change to mid or top end power. I am uncertain if power output has improved but the acceleration is smoother and quicker off idle which makes it a great product. I would not hesitate to buy another one.

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  • Pro Circuit T-4 S/A Complete Exhaust System

    Pro Circuit T-4 S/A Complete Exhaust System

    John in AZ

    Superior Construction

    Great product. Fits perfectly and easily installed even if limited mechanical experience. There are mounts for the original heat shield too (nice touch). Slightly louder then OEM exhaust but not significant. Better throttle response - quicker revving. Power slightly better but not dramatic. Beautiful appearance on the bike. I would buy again.

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  • Lexx MXe Slip-On Silencer With Mid-Pipe

    Lexx MXe Slip-On Silencer With Mid-Pipe

    houston in MT

    pro hill climbing

    love this exhaust. great sound performance. and it held up great very tough exhaust. if I could order this for all my bikes I deffently would.

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Dirt Bike Exhaust Systems

Aftermarket dirt bike exhaust systems are among the most popular upgrades that off-road enthusiasts seek. Why? A good exhaust system can add power throughout your bike’s RPM range easier than nearly any other mod. You can also tune it to your style of riding. Need to be stealthy for the hills? Want it wide open for the track? Rocky Mountain ATV/MC has you covered.

An exhaust system is a great way to really add some extra snap to your ride, but since it’s highly visible, it’s also one of the easiest ways to trick out your bike. After all, your friends can’t help but notice when a beefy new exhaust system is installed on your dirt bike! It doesn’t matter if you stick exclusively to the motocross track or the mountain trail, exhaust systems are important. That’s why at Rocky Mountain ATV/MC, we make sure to always stock an impressive selection at all times.

If you’re looking to add some extra power to your 4-stroke bike, look no further than the many options we have for 4-stroke exhaust systems. If you’re a die-hard 2-stroke fan, you’ll love our sections for 2-stroke pipes and 2-stroke silencers. It’s easy to find exactly what parts are compatible with your bike with our Parts Finder. All you need to do is enter your bike’s make, model and year. We’ll display every exhaust pipe and silencer that fits your specific motorcycle. That way you know you’re getting a high quality product that has been carefully crafted to match your ride. (If you want to stick to original stock replacements, that’s great too. Check out our OEM parts.) If you’re just looking for a few good ways to customize your existing setup, take a look at our dirt bike exhaust tools and accessories, where you’ll find a variety of options, including quiet cores, spark arrestors, aluminum pipe guards, silencer packing and more.

At Rocky Mountain ATV/MC, we know dirt bike exhaust systems. That’s why we’ve chosen to carry the most popular brands, including Yoshimura, FMF, Pro Circuit, Lexx and more. When it comes to motorcycle exhausts, pipes, silencers and mufflers, we offer the best products at the lowest prices. So when you want to add some extra torque and bling, you know where to turn. It’s what your dirt bike deserves!

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