Dennis Kirk Inc.
Legendary Service... Ask Your Friends - Since 1969
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Pro Circuit

Pro Circuit
There are a few names that all dirt bike riders recognize for their prominence in the sport. Pro Circuit is definitely on that list. Founded in 1978, Pro Circuit began as a shop to set up desert racers and MX bikes by racing pro and tuning specialist Mitch Payton. A competitive rider himself, Payton knew exactly how to setup bikes to excel in competition. Soon after their start, Pro Circuit had forged a name for themselves and they began to focus more and more on developing aftermarket performance parts, including what they are now best known for, dirt bike exhausts. Pro Circuit revolutionized rider sponsorships and that eventually led to winning national championships. Many legends of Motocross have ridden under the Pro Circuit banner, including Jeremy McGrath and Ricky Carmichael.

Pro Circuit is of course best known for their dirt bike exhausts. They develop pipes for both 2 strokes and 4 strokes that are far lighter than stock and produce far more power and torque. There are both slip-on and full systems to provide something for anyone looking for an upgrade. Exhausts are not all Pro Circuit offers. Their full line includes suspension linkages, throttle body kits, water pump and clutch covers, graphics, launch control kits, apparel and more.

At Dennis Kirk, you will find the best selection of Pro Circuit exhausts and dirt bike parts for the lowest guaranteed prices. We keep the most in stock and ready to ship to you the same day that you order them. That way, you can spend less time waiting and get back to ripping up the dirt as soon as possible. And when your order is over $89, we will ship it to you absolutely free. Use our Shop By Ride selector at the top of the page to find all of the Pro Circuit parts that will fit your specific bike. Plus, feel free to contact our Tech Team if you have any questions about what is best for you and your bike.