Best power with free-flow air cleaner and performance exhaust. Cruising hi-torque bolt-in cams. Incredible low rpm pulling power recommended for heavier bikes with stock compression ratio or up to 9.5:1. Peak performance at 1500 to 5000 rpm. Use stock valve springs. Very easy on valve train parts

Dimensions
W 9.05in * H 2.25in * L 5.9in
Weight: 3.025lbs