PPE Crankcase Breather Filter Kit 04.5-05 6.6L GM Duramax LLY PF-R4SBC135 and most 2003-2008 models have

and most 2003-2008 models have been retrofitted with this from the original Y-Style Steering

and better overall cooling performance and durability

The TwinRam Intake Manifold for your 94-98 Cummins doubles the airflow to your engine giving you immediate power gains

and o-ring seal

PPE Crankcase Breather Filter Kit 04.5-05 6.6L GM Duramax LLY PF-R4SBC135 and most 2003-2008 models haveProtect your LLY Duramax engine with a PPE PCV Breather Filter Kit. Engine runaway can be caused by oil vapor that travels through the crankcase breathers and into the intake system. Uncontrolled fueling of the engine is extremely dangerous. Upgrading the crankcase breathers and adding a PPE filter kit solves this runaway problem and stops normal oil vapor from contaminating the turbo, intercooler, and intake system. Other benefits of properly venting