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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
All diaphragms endure a four-stage
Attaches over factory caps — no modifications required
Made from 6061 aluminum and ¾” thick
Engineered for both aesthetics and performance
S58 Stainless Steel Race Downpipe | Fits G80/G82/G83 BMW M3 & M4, G87 M2 Camshafts All diaphragms endure a four-stageUpgrade your BMW with our SPOOL S58 Stainless Steel Race Downpipe, made from 304 stainless steel and designed to reduce backpressure and unleash over 100+ HP with proper tuning. Built to Perform: Made from 304 stainless steel, this downpipe is designed to handle the heat and stress of high performance driving, backed by our SPOOL lifetime warranty for peace of mind. Perfect Fit: Whether you drive a 20202023 G80 M3, G82 G83 M4, or the 2023+ G87 M2,
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