Cam Yam 4289-2E 4289-2E

Camshaft Exhaust Stage 2

Stage 2 is designed for mid to top end gains

Adds a 5%-10% power gain

Designed and dyno proven in the USA

Manufactured by utilizing state of the art valvetrain software

CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile

Engineered to be drop-in cams, that use stock valve springs (unless otherwise noted).

Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end.

For dual cam engine.

Mid to top end rpm power increase and minimal bottom end loss. Designed with I.T.R. technology. Includes auto-decompression mechanism. Exhaust Valve Lash: 0.220 mm.