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The Gibson single-side cat-back exhaust for 2003–2005 Chevrolet Trailblazer LS (4.2L) is a stainless cat-back system that enhances acceleration, towing and passing power while exiting behind the rear tire to keep the cab quieter. Dyno-tested to deliver low-end improvements—commonly 10–15 hp and 15–20 lb‑ft—this bolt-on kit features mandrel-bent tubing, a baffled Superflow muffler with minimal interior drone, polished slash-cut tip, factory-style hangers and a lifetime limited warranty.
Gibson 03-05 Chevrolet Trailblazer LS 4.2L 2.5in Cat-Back Single Exhaust - Stainless
