Pro Circuit T-4 S/A Complete Exhaust System for Yamaha TTR90 2000-2003

The Pro Circuit T-4 SA Complete Exhaust System is designed to provide some of the best performance and lightest weight for your four stroke machine. Made from premium stainless steel and aluminum, the T-4 SA is an extremely strong system that still manages to weigh less than your old stock exhaust. The stainless header and mid pipes mate to an aluminum silencer and work in conjunction so you get better power from the low rpms all the way up to the top of your power band. The silencer also helps lower your machines decibels thanks to a re-packable expansion chamber and optional quiet core insert that easily puts your bike below regulatory sound limits for both track and trail. All together, these design choices make the Pro Circuit T-4 S/A Exhaust System perfect when you want a full exhaust setup to take on the fastest tracks and into the deepest woods.