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The Gibson single-side cat-back exhaust for 2006–2009 Chevrolet HHR LS (2.2L, 2.5in) improves throttle response and low-end torque for everyday driving and light towing. Dyno-tested gains typically hit 10–15 hp and 15–20 lb‑ft from 1800–3000 rpm. This stainless system features mandrel-bent tubing, a baffled Superflow CFT muffler, polished round slash-cut tip and factory-style hangers for a no-weld bolt-on installation with reduced in-cab drone and lifetime limited warranty coverage.
Gibson 06-09 Chevrolet HHR LS 2.2L 2.5in Cat-Back Single Exhaust - Stainless
