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Wehrli’s 3" raw Y-Bridge is built for 2001–2004 Chevrolet Duramax LB7 engines running S300 or S400 single-turbo setups, offering a larger, higher-flow path to the intake runners. Not a direct OEM replacement but compatible with OEM intake runners, it includes MAP sensor and accessory bungs, silicone boot and clamps, CNC billet center section and flanges, and ships raw aluminum ready for finishing.
Wehrli 01-04 Chevrolet Duramax LB7 S300/S400 Single Turbo 3in Y-Bridge Kit - Raw
