[quote name='Gord' post='554156' date='Jun 16 2008, 02:16 PM'][quote name='Jack300' post='554130' date='Jun 16 2008, 01:04 PM']I think that Janet is right - longer too maybe.
Keep us informed as to how you get on as I'll be in the market for a back box (and pipe) pretty soon...
Good luck
Jack[/quote]
The back box on the is300 is the same fitment as the is200/Altezza

Eg, one back box will fit all 3 models

[/quote]
Second that Gord, the one I have on the Tezza came off Fargo's 300.