Race proven in some of the fastest VW’s in the world. Engle Cams feature billet strength and reliability. Engle offers the widest choice of Performance Cam Grinds available. Must be installed using new Cam Lifters. Will require Cam Gear Bolts: P/N: 21-4310. Please refer to the "ENGLE CAMSHAFT SPECS" on the second page of the "Engine Parts & Accessories" section for specs on all of the Engle Cams available on our website. 21-4035