The scorpion red power car exhausts are packed with features specifications include designed specifically for the volkswagen golf mk4 r32 2003 2005 cat back system non resonated includes the following components centre no silencer rear silencer fitting kit pipe diameter 70mmtailpipe twin 100mm daytonared power valve no british manufactured all scorpion exhausts are hand crafted by scorpion automotive engineers in derbyshire uk guarantee all scorpion car products