4G63 DOHC Premium Beehive Springs | Titanium Retainers KVS63-BTK-X rb alternator Turbosmart's large diaphragm working area

Turbosmart's large diaphragm working area ensures you're in control of your boost curve

Excellent throttle response

IRP has a worldwide network of distributors who thoroughly test our products and distribute to consumers

The GenV External Wastegate from Turbosmart was a ground-up rework of a classic and the only feature that rolled over from the Gen4 range was the mounting orientation

When set up properly

4G63 DOHC Premium Beehive Springs | Titanium Retainers KVS63-BTK-X rb alternator Turbosmart's large diaphragm working areaInstall at 90lb seat pressure. Maximum valve lift 13. 50mm. MITSUBISHI 4G63 DOHC EVO 1 9. High Performance PACALOY Beehive spring and Titanium retainer set. Suits high RPM, high boost competition engines. Install at 90lb seat pressure. Maximum valve lift 13. 50mm.