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 drop-in chargers. The kit increases throttle response and turbo spool-up, includes silicone boots, clamps, gaskets and an FPRV block-off kit, and is finished with a durable powder coat.
Wehrli 01-04 Chevrolet 6.6L LB7 Duramax 3in Y-Bridge Kit - Gloss Black