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The Gibson single-side cat-back exhaust for 2003–2006 Toyota Tundra SR5 (4.7L) is an aluminized, bolt-on system that enhances acceleration, hill climbing and towing power while exiting behind the rear tire. Dyno testing shows increased low-end torque and horsepower between 1800–3000 RPM, with average gains of 10–15 hp and 15–20 lb‑ft. It includes hardware and factory-style hangers, a baffled Superflow muffler to reduce cabin drone, polished slash-cut tip, and a lifetime limited warranty.
Gibson 03-06 Toyota Tundra SR5 4.7L 2.5in Cat-Back Single Exhaust - Aluminized
