This stainless steel made Alpha Competition, downpipe, in 3.5" / 89mm diameter, fits without modification between the turbo and the front pipe of the M139 engines fitted to the Mercedes A45 / A45S / CLA45 AMG W177 / C118 in order to remove the main catalyst. Manufactured from high quality T304 stainless steel with handmade TIG welds, this downpipe will bring an average gain of 28hp on a stage 1 engine and a particularly aggressive sound. With a high flow structure and thermal insulation to reduce heat radiation by 50%, this downpipe clearly represents the best value for money on the market!

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Direct mounting

100% T304 stainless steel

3.5" / 89mm pipework

Specific thermal insulation

Measured gain on stage 1: 28hp

Aggressive sound

Handmade TIG welds

Assembly kit included

Lifetime warranty

- ECU calibration is mandatory -