Our full exhaust system for the 2007 Yamaha R1 features mandrel bent stainless steel tubing, billet aluminum flanges and your choice of titanium or carbon fiber silencers with tapered conical outlets. An O2 Bung (w/ plug) is provided for use with the stock Yamaha O2 Sensor. Gains of 13.6 hp can be achieved with use of a Power Commander. Installation of this system will shed 8.6 lbs from the already light bike.

Horsepower
Graves Full Exhaust System = 170.1 hp (+13.6 hp)
Stock Exhaust System = 156.5 hp

Exhaust System Weights
Graves Full System (Stainless Steel) = 13.8 lbs. (-8.6 lbs.)
Stock Full System = 22.4 lbs.