Black Mamba 3.5″ (89 mm) Decat Downpipe for Mercedes A45 / A45S / CLA45 AMG W177 / C118 M139 engines, engineered for optimal exhaust flow and significant power gains. Crafted from premium T304 stainless steel with handmade TIG welds, this high-flow downpipe eliminates the restrictive main catalyst, delivering a proven 28hp gain on Stage 1 setups while producing an aggressive exhaust tone. Features integrated thermal insulation to reduce heat radiation by up to 50%.
Direct bolt-on installation
100% T304 stainless steel construction
3.5″ (89 mm) mandrel-bent pipework
Proven power gain: 28hp on Stage 1 engines
Specific thermal insulation for heat management
Handmade TIG-welded joints for maximum durability
Aggressive exhaust sound
Complete assembly hardware included
Lifetime warranty
ECU calibration required
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