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Remark's titanium-stainless 4-inch quad cat-back non-resonated exhaust for 2015+ Subaru WRX/STi combines lightweight appearance with direct-fit performance. This rear section replacement uses titanium-styled components paired with stainless construction to alter exhaust tone and flow without requiring custom adaptation. It fits the listed WRX/STi applications as a bolt-on upgrade.
Remark 2015+ Subaru WRX/STi 4in Quad Cat-Back Exhaust Titanium Stainless Non-Resonated
