Performance Valve Springs and Retainer Kit Powerstroke 6.7 Bring your Powerstroke back to

Bring your Powerstroke back to life with the XDP 6

Avoid a costly failure down the road and convert your CP4 to a CP3 with our complete

Model Year Information: 2004 Models: If you have a 2004 model you must check your VIN code to determine your production date

Simple Installation

Performance Valve Springs and Retainer Kit Powerstroke 6.7 Bring your Powerstroke back toThe XDP Performance Valve Springs and 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