The 3" High Flow Passenger Side Upper Crossover Intercooler Pipe for 2011-2016 LML Duramax provides a 20% increase in size over the OEM part allowing for less restriction in air flow and and an increase in efficiency and turbo spool up. Eliminates resonator for improved appearance and more aggressive turbo and engine sound. For use with the OEM Y-Bridge and connects to factory throttle valve and grid heater. Finished in your choice of custom powder colors.This pipe is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. Installs easily with basic hand tools. Pairs best with emissions compliant tuning and drop in turbochargers for optimum performance gains. Replaces the following GM Part Numbers: 12642321. Wehrli Custom Fab Passenger 3" Upper Crossover Intercooler Pipe, 11-16 Duramax LML, Bronze Chrome. Wehrli 2011-2016 LML Duramax Passenger Side Upper Crossover Intercooler Pipe Kit Bronze Chrome. Passenger 3" Upper Crossover Intercooler Pipe, 11-16 Duramax LML, Bronze Chrome. Will fit on stock truck no other modifications or upgrades necessary!. Includes Billet Turbo Resonator Plate for OEM Intake Horn. Connects to factory throttle valve and grid heater. 3 in. High Flow Upper Intercooler Cross Over Pipe. Crossover IC Pipe 11-16 Dmax Brnz Chrm. Durable Custom Powder Coat Finish. 18% Gain in Air Flow Over Stock. Compatible with OEM Y-Bridge. NO Tuning required, bolt on!. 14g aluminum construction. Crossover 11-16 BC. Intercooler Pipe. Made in USA

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