The GReddy DD-R resonated catback exhaust is engineered for 2017-and-newer Honda Civic Si Sedan applications. This resonated system replaces the factory exhaust on the sedan to deliver the DD-R exhaust character; it is a direct-fit solution for the specified Civic Si sedan models and intended to simplify replacement. It offers the resonated DD-R option tailored for the sedan's exhaust routing.
GReddy 2017+ Honda Civic SI Sedan DD-R Resonated Exhaust