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Their new design features a 42mm thick core while extending the height by 150mm totaling in a 60% increase in core volume and adding 180% to the external fin surface area
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By using a cross-directional carbon weave layup with multiple layers to form a 2mm wall thickness
9 grade zinc coated concentric swivel washer lug bolts
5 inch mandrel bent pipes all the way back to a set of beautiful quad tips
MAD BMW S58 Catted Downpipes X3M X4M F97 F98 W/ No CEL Guarantee & Flex Section mad turbo inlet Their new design features aIntroducing 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
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