What are the specs on it? Is it still the normal 2.5" OD piping? Got a link?
EDIT--I just looked it up and it does still use the same 60mm ID (2.5" OD) piping as most other Celica exhausts. I couldn't find much other info about it, though, other than that it is made with a different stainless steel than the regular nur spec.
Where did you find out that it was a true cat-back?
^^ Yeah, they do have it listed for the Celica on a lot of UK sites. I still don't see where it's a true cat-back, though. All the pictures I see are generic, and I can't find any other information on it being a true cat-back or even just an axle-back.
Well, the fact that the blitz axle back is one piece and the TT-R is a two piece leads me to believe it is a cat back. Fensport has it listed as a cat back also, and all other exhausts as axle backs, so its not a typo. Someone in the UK should contact blitz and ask if its a cat back and if it will fit the US spec celica.