ISR Performance resonated mid-section for early BMW E46 323 and 328 models provides a direct-fit replacement midpipe with resonance tuned for balanced sound and drivability. This listing is for the resonated mid-section only and integrates with compatible exhaust components. It is intended for owners who want a focused mid-pipe upgrade to refine tone and exhaust flow while keeping other stock or aftermarket sections in place.
ISR Performance BMW E46 Early 323/328 II Resonated Mid-Section Only