Black Mamba 3.5″ (89 mm) Decat Downpipe for BMW 140i, 240i, 340i, and 440i B58, precision-engineered from premium T304 stainless steel with mandrel-bent piping and TIG hand-welded construction for maximum durability and performance. This direct bolt-on upgrade enhances exhaust flow, delivering a more aggressive exhaust tone and a noticeable boost in power without requiring any modifications.
Direct bolt-on fitment
100% T304 stainless steel construction
3.5″ (89 mm) mandrel-bent piping
TIG-welded for maximum strength
Aggressive exhaust sound
Complete installation hardware included
Lifetime warranty
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