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By using a cross-directional carbon weave layup with multiple layers to form a 2mm wall thickness
Power gains of up to 80hp on a stock vehicle without the risks of flashing
5" ET40 1 19
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Modified ride height compared to Sport Springs to maximize optimal suspension geometry
MAD BMW S58 Catted Downpipes X3M X4M F97 F98 W/ No CEL Guarantee & Flex Section mad turbo inlet By using a cross-directional carbonIntroducing the MAD S58 Catted Downpipes ETA: August 2026 The perfect upgrade for BMW X3M and X4M owners looking to unlock more performance and a deeper, more aggressive exhaust note without triggering a check engine light. Crafted from high quality 304 stainless steel, these downpipes are built to withstand extreme heat and demanding driving conditions. The smooth mandrel bent design maximizes exhaust flow, resulting in noticeable gains in
