Everythings pretty much the same, esp. in the front, I know from experience FMIC kits fit, and front bars swap. The rear is different (apart from obviously 2 extra doors), rear bars, lights, boot, spoiler all different, and the car IS marginally longer.
Mine already came with a 3" system, but I say just find a good exhaust shop and get them to make you something up, go a pre-fabbed dump & front pipe (maybe something like BATMBL sells) and a name-brand muffler, then get them to join it all up.
If you're looking to pick somethng up second hand then just take it to get lengthened where necessary.