XDP PERFORMANCE VALVE SPRINGS & RETAINER KIT FOR 2001-2016 GM 6.6L DURAMAX 2014-2018 silverado 1500 Black and Gray Bench Seat

Black and Gray Bench Seat

A turbocharger mounting gasket set is also included

or excessive smoke

3” mandrel bent tubing and dual passenger-side angled exit after the rear tire with polished 3

Includes pre-filter with water separation built in

XDP PERFORMANCE VALVE SPRINGS & RETAINER KIT FOR 2001-2016 GM 6.6L DURAMAX 2014-2018 silverado 1500 Black and Gray Bench SeatThe XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001 2016 GM 6. 6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is