Black Mamba Audi RS4 B9 / RS5 F5 Decat Downpipes

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. Select your version - 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