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The Gibson single-side cat-back exhaust for 1987–1989 GMC R2500 Suburban Base (5.7L) is a stainless cat-back system that improves acceleration, towing and hill-climbing while routing exhaust behind the rear tire to reduce cabin noise. Dyno-tested for low-end power—typical gains of 10–15 hp and 15–20 lb‑ft—this bolt-on system includes mandrel-bent tubing, a baffled Superflow muffler for aggressive tone with minimal drone, polished slash-cut tip, factory-style hangers and a lifetime limited warranty.
Gibson 87-89 GMC R2500 Suburban Base 5.7L 3in Cat-Back Single Exhaust - Stainless
