These decat downpipes, crafted from high-grade T304 stainless steel with mandrel bends and hand-made TIG welds, are a direct-fit upgrade for the powerful S55 engines in the BMW M3, M4, and M2 Competition. With exceptional build quality and premium materials, they offer one of the best price-to-performance ratios available. Direct bolt-on installation 3.5″ (90 mm) diameter 100% T304 stainless steel construction with Heat Shield Hand-welded using TIG technique Lifetime warranty
