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The Gibson Cat‑Back Single Exhaust for 2017–2022 Toyota 4Runner (4.0L) is a stainless single‑side system tuned for better acceleration and towing response, with typical gains of 10–15 hp and 15–20 lb‑ft. The package includes mandrel‑bent tubing, factory‑style hangers and a baffled muffler to reduce cabin drone while delivering a stronger exhaust note. It installs as a bolt‑on upgrade and carries Gibson’s Lifetime Limited Warranty.
Gibson 17-22 Toyota 4Runner Base 4.0L 2.5in Cat-Back Single Exhaust - Stainless
