The Black Mamba decat downpipe for the 1.6 THP engine in the Mini Cooper S R56 / R57 is the best deal on the market. Made from premium T304 stainless steel, it features mandrel bent and TIG welded 2.5" (63.5mm) pipework, designed to fit directly from the turbo to the front pipe without any modification. Direct bolt-on installation 100% T304 stainless steel construction Aggressive tone TIG Welded for durability 2.5" (63.5mm) diameter pipework Lifetime warranty Let me know if you need anything else!