i just got the exhaust done today, a 2.5 inch cat back (apexi n1 centre pipe) and rear section, into a 2.25 inch dunk megaphone..... a lot quieter than the 3 inch.... *phew*
Why would you go smaller then stock? The stock piping on the fto, is 2.4 (basically 2.5) i think, and that is mandrel bent. Why would anyone even need to change the piping? Unless they went turbo, i think the stock exhaust is almost perfect, for the car.
i didnt know what size the exhuast was stock, so i must of gotten a 2.5inch system.
I just thought the FTO had a 2 to 2 1/4 system becuase it was a 2L engine.