Enhance the performance of your BMW X4 M40i B58 with our Catless Downpipes, designed for improved exhaust flow and an aggressive exhaust note. Crafted in Germany from high-quality 304 stainless steel, these downpipes are engineered for maximum durability and are backed by a lifetime warranty to ensure lasting reliability.
Key Features:
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Diameter 4” – Designed for optimal exhaust flow and performance
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100% Mandrel Bent and TIG Welded – Precision-crafted for strength and perfect fitment
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Constructed of Low Carbon 304 Stainless Steel – Corrosion-resistant for long-lasting durability
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Bolt-On Installation – Easy, hassle-free installation with no need for modifications
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Improved Exhaust Note – Aggressive and deep sound to complement your performance upgrades
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Improved Exhaust Flow – Increased horsepower, quicker turbo spool, and better overall performance
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Made in Germany | Lifetime Warranty – Built for premium performance and longevity.