Wehrli 3in Y-Bridge Kit | Chevy LB7 Duramax (01-04) (WCF100693-RED)

The Wehrli 01-04 Chevrolet 6.6L LB7 Duramax 3in Y-Bridge Kit is a high-flow, complete Y-bridge upgrade designed specifically for LB7 Duramax engines. Constructed to replace the restrictive OEM Y-bridge and cold side intercooler pipe, this kit features a full 3-inch intake tract from the intercooler outlet to the engine, enhancing throttle response and turbo spool-up. It is compatible with the factory IHI turbo and aftermarket drop-in IHI style chargers, making it an ideal performance upgrade. The kit also eliminates the angled OEM intercooler boots that are prone to failure, ensuring improved durability and reliability. Included is an FPRV block-off kit to accommodate larger diameter Y-bridges, further supporting performance enhancements.

Designed for 2001-2004 Chevrolet Silverado and GMC Sierra models equipped with the 6.6L LB7 Duramax engine, this bolt-on upgrade offers a straightforward installation for increased airflow and engine efficiency. It is suited for street and performance applications where improved throttle response and turbo spool are desired. The kit includes the high-flow Y-bridge and FPRV block-off components, providing a complete solution for replacing the factory parts. This upgrade is ideal for enthusiasts seeking to optimize their Duramax’s airflow and reliability without extensive modifications.