Stand out with this incredible Alpha Competition De-Cat Downpipes for all Mercedes Benz AMG GT/GTS/GTC/GTR C190. (Years: 2015 - 2021) These stainless steel made Alpha Competition downpipes, in 3" / 76mm diameter, fit without modification between the turbos and the front pipes of the M177 4.0T engines fitted to the Mercedes AMG GT / GTS / GTC / GTR C190 in order to remove all the catalysts. Manufactured from high quality T304 stainless steel with handmade TIG welds, these downpipes will bring an average gain of 37hp on a stage 1 engine and a particularly aggressive sound. With a high flow structure and thermal insulation to reduce heat radiation by 50%, these downpipes clearly represent the best value for money on the market! Direct mounting 2-piece kit 100% T304 stainless steel 3" / 76mm pipes Specific thermal insulation Measured gain on stage 1: 37hp Aggressive sound Handmade TIG welds Assembly kit included Lifetime warranty - ECU calibration is mandatory - Fits: Mercedes-Benz AMG GT C190 (15-21) 4.0T - GT/GTS/GTC/GTR