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The Gibson Dual Split cat-back exhaust for 2007–2012 Chevrolet Avalanche (5.3L) is a stainless bolt-on system with straight rear exit polished tips that produce an aggressive tone and improved flow. Engineered to reduce backpressure, it typically yields 15–20 hp of added power and increased torque. The baffled Superflow muffler and mandrel-bent tubing aim to limit cabin drone while included hardware and hangers make installation straightforward; no welding required and backed by a lifetime limited warranty.
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.5in Cat-Back Dual Split Exhaust - Stainless
