MAD BMW M3 M4 S58 G8x Resonated Single Midpipe TitaniumEnhance your BMW M3 M4 S58 G80 G82 G83 with the MAD Resonated Single Midpipe Titanium, designed to deliver superior sound and performance while ensuring a cleaner, more refined exhaust note. Key Features: Resonator and Secondary Catalytic Converter Delete: This resonated midpipe removes the two resonators and two secondary catalytic converters found in the stock midpipe. The primary catalytic converters in the downpipe remain untouched, ensuring no