The Gibson aluminized axle‑back dual exhaust for 2006–2008 Cadillac STS‑V 4.4L produces a deep, powerful rumble and improved throttle response. The system uses resonance‑tuned, baffled mufflers with polished stainless double‑wall slash tips to increase flow velocity while controlling interior noise. It installs with factory‑style hangers and included hardware for a bolt‑on fit and is covered by a lifetime limited warranty.
Gibson 06-08 Cadillac STS V 4.4L 2.5in Axle-Back Dual Exhaust - Aluminized