B58 Downpipes - BMW M340i, &340i, M240i, M440i, 440i, X3 M40i, X5 M40i | A90 Supra

Product Description Unlock the full potential of your BMW or Toyota Supra’s B58 engine with our precision-engineered B58 Downpipes, designed for enthusiasts demanding performance, sound, and responsiveness. Available in two configurations — Racing (Catless) for maximum exhaust flow and performance, or 200-Cell Hi-Flow Catted for a balanced combination of power gains and emissions compliance. Crafted from premium-grade stainless steel with precision TIG-welded seams, ensuring long-lasting durability under extreme heat and high boost pressures. Enhances turbo spool, reduces backpressure, and delivers an aggressive, sporty exhaust tone that transforms the driving experience. Features Two Versions – Racing Catless for unrestricted exhaust flow, 200-Cell Hi-Flow Catted for performance with reduced emissions Premium Stainless Steel Construction – Corrosion-resistant and heat-tolerant for maximum longevity Precision TIG Welding – Provides exceptional strength and structural integrity Perfo