I've been looking for some exhaust components for the Lister; the problem is, it's dead easy to find prices for specific makes/models of car, but nearly impossible to determine what size pipe is fitted, as standard, to said makes/models... So, whilst I'm fairly sure that a Mini or a Ford Ka exhaust will be far too small a bore, and a Subaru Impreza WRX is probably too big a bore... does anyone know any (UK) makes/models which use 2.5" as standard?
As an alternative, I may use the Aston Martin exhausts I have here (ex racing car): they're only 2" bore, but I have two silencers I can run in parallel... I doubt it'll make a CS sound like a DB7, though!