The Black Mamba decat downpipes, crafted from high-quality T304 stainless steel, feature a 4.5" / 114.3mm > 3" / 76mm diameter and fit without modification between the turbos and front pipes of the 2.9 TFSI engines in the Audi RS4 B9 and RS5 F5, removing the catalysts.

These downpipes, built with handmade TIG welds, offer an impressive power gain of 34hp on a stage 1 engine and deliver a particularly aggressive sound. With a high-flow design and optional thermal insulation to reduce heat radiation by 50%, these downpipes are a top choice for performance and value.

Direct mounting 2-piece kit

100% T304 stainless steel 4.5" / 114.3mm > 3" / 76mm pipes

Optional thermal insulation

Measured gain on stage 1: 34hp

Aggressive sound

Handmade TIG welds

Assembly kit included

Lifetime warranty

ECU calibration is mandatory

Fits:

Audi RS4 B9

Audi RS5 F5