The Graves Motorsports Cat. Eliminator Slip-On exhaust system features mandrel bent stainless steel tubing and carbon fiber silencers with tapered conical outlets. An O2 Bung (w/ plug) is provided for use with the stock Yamaha O7 Sensor. This system removes the stock catalytic converters and mufflers but retains the stock header and EXUP valve.

Horsepower
Graves Cat Eliminator Slip-On Exhaust System = 166.0 hp (+9.4 hp)
Stock Exhaust System = 156.6 hp

Exhaust System Weights
Graves Cat Eliminator Slip-On Exhaust System = 8.8 lbs. (-8.1 lbs.)
Stock Exhaust System w/ Catalytic Converters = 16.9 lbs.