MBRP Cat Back Exhaust System Dual Split Side T409 Stainless Steel For 09-13 Silverado/Sierra 1500 4.8/5.3/6.0L RC/Extended Cab/Crew Cab S5056409 fuel system This component is a pressure

This component is a pressure relief valve mounted between the turbo and the intake manifold that releases surplus air pressure when your EcoBoost comes off the throttle

Universal fit

Constructed out of 3" Mandrel-Bent Stainless Steel Tubing

Wall Type: Dual Wall

Its louvered core reduces unwanted drone and smooths out exhaust notes without cutting power

MBRP Cat Back Exhaust System Dual Split Side T409 Stainless Steel For 09-13 Silverado/Sierra 1500 4.8/5.3/6.0L RC/Extended Cab/Crew Cab S5056409 fuel system This component is a pressureT409 Stainless Steel 2. 5 Inch Cat Back Dual Split Side MBRP's XP Series is the performance exhaust of choice for the enthusiast who needs a system that can take anything that the road throws at it. This system's rugged sixteen gauge T409 Stainless Steel construction can be counted on to withstand everything from salt to rocks, tar to grime. We have had such success with this line that we back it with a Lifetime Warranty. Built to Perform MBRP's