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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
pairing a durable ABS plastic lip with splitters
aggressive finish
durable materials
improved throttle response
Improve stance
MAD BMW S58 4" Fatboy Single Midpipe for G80 M3 & G82/G83 M4 G83 M4 pairing a durable ABS plasticLet the S58 sound like it should. The MAD 4" Fatboy Single Midpipe replaces the restrictive factory dual midsection on the G80 M3 and G82 G83 M4 with a high flow, single 4 inch pipe. By simplifying the exhaust path and increasing diameter, this midpipe sharpens throttle response, deepens tone, and helps the turbos move air more efficiently without adding harsh rasp. Key Features 4" Single Pipe Design Large diameter midsection reduces backpressure and
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