The Graves™ Motorsports full exhaust system utilizes proprietary ADSD technology. Up to a 20% gain in horsepower is achieved while eliminating weight. This system features all stainless steel construction with a carbon fiber silencer. On the YZ450F/ YZ250F: 98dB @ 5000 RPM, for the WR250X/ WR250R: 95dB @ 5000 RPM.

For closed-course competition use only.