Alan Knowles at CT Racing has been in the sport since forever. As a former pro racer, he knows what works, and today CT Racing designs and builds parts for almost every sport ATV model. CT Racing builds bold exhaust systems, and with in-house dyno and engine testing systems to analyze and continually improve each design, you can be sure a CT exhaust system works. When installed and run as designed, they offer very little noise increase over the stock system, and meet ever more stringent ATVA racing sound restrictions. Check them out at www.ctracing.com or call (562) 945-2453.