High Flow Bundle Kit Stage 1 2006-2007 Duramax LBZ Gloss Black

This Stage 1 upgrade for 2006-2007 LBZ Duramax engines enhances airflow between the turbo and engine, improving efficiency, throttle response, and turbo spool-up. It replaces weak factory components prone to boost leaks and failures. The kit includes a 3" Y-Bridge Kit (replacing the OEM upper intake manifold), 3" high-flow upper and lower intercooler pipes with mandrel bends and CNC machined billet flanges, a 3" Driver (Hot) Side Intercooler Pipe (replacing the 2.5" OEM), and a 3.5" High Flow Passenger (Cold) Side Intercooler Pipe made from 14-gauge aluminum (replacing factory plastic).