Wehrli 3" high-flow Y-bridge kit for 2001–2004 Chevrolet 6.6L LB7 Duramax replaces the restrictive OEM Y-bridge and cold-side charge pipe with a full 3" intake tract compatible with factory IHI turbos and IHI-style chargers. Mandrel-bent aluminum and a fabricated billet Y-bridge increase throttle response and turbo spool-up, include silicone boots, clamps, gaskets and an FPRV block-off kit.
Wehrli 01-04 Chevrolet 6.6L LB7 Duramax 3in Y-Bridge Kit - Bengal Blue