Performance Valve Springs and Retainer Kit Cummins 6.7 Replaces Factory Cooler

Replaces Factory Cooler

producing plenty of flow for worn injectors that have high return

This can be hard on a turbo and motor and is not recommended

It features a KC turbos 10 blade turbine wheel

the common rail diesel injection experts

Performance Valve Springs and Retainer Kit Cummins 6.7 Replaces Factory CoolerThe 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