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Wehrli Custom Fabrication high-flow Y-bridge kit for 2011–2016 Chevy 6.6L LML Duramax replaces the restrictive OEM upper intake with a CNC-machined cast aluminum bridge that improves airflow by roughly 36% and includes a 20% larger, 3" fabricated upper intercooler crossover pipe. It bolts on using factory connections for throttle valve, EGR, and intake heater grid, includes a billet resonator plate, and is supplied with custom powder-coat finishes and no tuning requirement.
Wehrli 11-16 Chevrolet 6.6L LML Duramax High Flow Y-Bridge Kit - Bengal Blue
