Replace the fragile plastic OEM fittings on the top of your 2004.5-2010 LLY/LBZ/LMM Duramax engine which are prone to damage with these high quality, black anodized, CNC machined billet aluminum fittings from WCFab. Crankcase Vent (PCV) Fitting Kit Billet 04.5-10 Duramax LLY/LBZ/LMM Black Features:...

The WCFab Billet Individual Runner Sheet Metal Intake for 5.9L and 6.7L Cummins engines feature a massive, custom fabricated aluminum intake plenum and high flow precision CNC machined tapered individual intake runners to provide significantly increased airflow and more balanced distribution to all cylinders....

The WCFab Billet Individual Runner Sheet Metal Intake for 3.9L 4BT Cummins engines feature a massive, custom fabricated aluminum intake plenum and high flow precision CNC machined tapered individual intake runners to provide significantly increased airflow and more balanced distribution to all cylinders. Designed...

WCFab Duramax Billet Individual Runner Intake Kit. High Flow CNC Machined runners and bellow style inlets. Left and Right Head Individual Runner Ports, dual 3" V-band Inlets, or hose inlets. Powder coating is an additional cost. This intake kit will not work with OEM-style...