High Flow Bundle Kit Stage 1 11-16 Duramax LML Shocker Yellow

This Stage 1 kit upgrades the 2011-2016 LML Duramax to improve airflow, throttle response, and turbo spool-up. It replaces factory intercooler pipes to eliminate weak points and prevent boost leaks. The kit includes a 3" high-flow passenger side upper crossover intercooler pipe (20% increase over OEM, eliminates resonator), a 3" high-flow driver side intercooler pipe (one-piece, replaces factory two-piece 2.5” pipe), and a 3.5" high-flow passenger side intercooler pipe (one-piece 14 ga. aluminum, replaces factory plastic two-piece pipe). It also includes upgraded silicone boots for higher boost pressures. Designed for use with OEM Y-Bridge, connecting to factory throttle valve and grid heater. Best paired with emissions-compliant tuning and drop-in turbochargers.