I have a 2001 sports special and I was just wondering what was the size of the flange from the second cat back is ?? The only reason I ask is because the centre pipe looks a lot thinner than a wrx or turbo pipe . It looks to be 2" instead of 2.5 . I was wondering as my exhaust has a blow in it at the moment is it correct to buy a 2.5 fitment from the cat or is it gonna fit ?

 

Anyone