The WCFab Stage 1 High Flow Intake Bundle Kit is made for 2001–2004 Chevrolet 6.6L Duramax LB7 engines and replaces the restrictive OEM Y-bridge and intercooler pipes with a full 3" mandrel-bent aluminum tract. The kit includes a TIG-welded, CNC-machined billet Y-bridge base, upgraded silicone boots, gaskets, and an FPRV block-off kit to improve airflow between turbo and engine while addressing common factory weak points.
Wehrli 01-04 Chevrolet LB7 Duramax High Flow Intake Bundle Kit Stage 1 - Bengal Red