The scorpion red power car exhausts are packed with features specifications include designed specifically for the volkswagen golf mk7 gti 2013 current downpipe no catalyst includes the following components downpipe no catalyst fitting kit pipe diameter 76mmtailpipe nared power valve na british manufactured all scorpion exhausts are hand crafted by scorpion automotive engineers in derbyshire uk guarantee all scorpion car products are guaranteed for life fittingsin