Based in Corona, California, Pro Circuit Inc. is a leader in off-road motorcycle and ATV exhausts and aftermarket performance parts. Created by former desert racer Mitch Payton, Pro Circuit proves its products and services week-in and week-out through its tagline "We Race." Every product that dons the Pro Circuit stamp stems from the legendary Pro Circuit race team. A staple in the professional paddock, Pro Circuit Racing has earned 26 AMA championships and more than 200 race wins in more than 30 years of competition.
- The Pro Circuit Billet Quiet Assembly is sold as a kit which includes the quiet insert and billet end-cap.
- Made in the U.S.A.
- Note: 2007 / 2008 inserts will NOT fit older model end caps.
