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The Remark 4-inch quad cat-back resonated stainless system for 2015+ Subaru WRX/STi is a direct-fit rear exhaust intended to offer a balanced sound profile. As a resonated single construction, it replaces the factory rear section for refined tone control while maintaining bolt-on installation. The system is specified for WRX/STi applications and aims to improve exhaust flow and character.
Remark 2015+ Subaru WRX/STi 4in Quad Cat-Back Exhaust Stainless Single Resonated
