The scorpion red power car exhausts are packed with features specifications include designed specifically for the subaru impreza 25 turbo sti 2014 current secondary catalyst replacement pipe diameter 635mmtailpipe 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 fittingsinstructions all scorpion products are supplied wi