Graves Motorsports Cat. Eliminator Stainless Steel/ Carbon Fiber Exhaust System - Yamaha R1 (2007-2008)- The Graves Motorsports Cat. Eliminator exhaust system features mandrel bent stainless steel tubing and carbon fiber silencers with tapered conical outlets.
- An O2 Bung (with plug) is provided for use with the stock Yamaha O2 Sensor.
- This system removes the stock catalytic converters and mufflers but retains the stock header and EXUP valve.
- System gives an overall weight savings of 8.1 lbs. compared to stock exhaust system.
Horsepower:
Graves Cat. Eliminator Slip-On Exhaust System = 166.0 hp (gain of +9.4 hp)
Stock Exhaust System = 156.6 hp
For closed course competition only.