---Manufactured from highest quality T304 grade stainless steel ---Designed to be fitted with a 3" cat back system ---Built in 200cpi non type approved sports cat ---Large bellmouth design for maximum flow ---Designed to decrease turbo spool time and increase horsepower capacity Fitment: ---Subaru Impreza Newage WRX & STi 2002-2007 models Please note ---This will not fit estate (wagon) models --- This is a non type approved CAT and as such will not pass an MOT so is sold for off road use only.