Choose a vehicle:

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

» Log in to use your Rider Profile Machines

Please select make, model and year

4-Stroke Exhaust4-Stroke Exhaust

4-Stroke ATV Exhaust

Many aftermarket parts allow you to customize your quad, but nothing else has quite the same effect as a new ATV exhaust. The exhaust system helps control two vitally important aspects of any four wheeler: the noise level and the power output. By swapping out the silencer or even replacing the full exhaust system (including the mid-pipe or head-pipe), you can reach the sound and power you’re looking for.

If you’re looking for an ATV exhaust silencer, you can’t go wrong with Rocky Mountain ATV/MC. On this page, you’ll find silencers and exhaust header pipes for 4-stroke quads. And since the exhaust system is so vital to a quad, you’ll find major names here like FMF, Lexx, Pro Circuit, Yoshimura, HMF and others.

For four wheelers, riding the trail is just as important as tearing up the track – if not much more so. That’s why the silencers we choose to carry include USFS-approved spark arrestors, allowing you to enjoy riding in the woods both safely and legally.

If your ATV needs a whole new exhaust or just a silencer, this is the best place to pick one up. Enter your quad’s make, model and year above to see what we have available to fit your machine.

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

  • FMF Power Core 4 Hex S/A Silencer

    FMF Power Core 4 Hex S/A Silencer

    Raymond in WY

    Good sound, good price

    My crf450x now has a similar tone to my friends crf450r, the rhythm is still different due to the r's more aggressive cam. The stock exhaust was restrictive and very quiet, so I removed the baffle from the stock muffler and it was too loud. This FMF pipe is a happy medium between the two. One thing I did not like was where the mid-pipe connects to the header pipe, I would like to have a metal clamp similar to the stock one instead of using high temp silicone. But overall the fit was good.

    Read All Reviews
  • 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!

    Read All Reviews
  • 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.

    Read All Reviews
  • 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.

    Read All Reviews
  • 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.

    Read All Reviews
  • 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.

    Read All Reviews
RM Cash ProgramParts Finder