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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
By retaining the OEM muffler you still have the ability to control the volume of your exhaust
while increasing exhaust gas velocity by utilizing a full 3
BMW G80 M3 (2021+)
Build the ultimate tune for your S63tu4 powered vehicle and go from stock to full race calibration
MAD BMW B58 2025+ Gen 3 M340 4.5" Downpipe Catless 340 intake By retaining the OEM mufflerEnhance your BMW's performance with the MAD BMW B58 Gen 3 Catless Downpipe, specifically engineered for the 2025+ BMW M340. Crafted from premium 304 stainless steel, this 4. 5 inch downpipe guarantees optimal exhaust flow, durability, and resistance to corrosion, providing the absolute best quality and longevity. By eliminating restrictive factory catalytic converters, the MAD catless downpipe significantly boosts horsepower, sharpens throttle
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