Hi peoples, I'm a new TTG owner, traded in my '05 4 speed Ghia. Must say I'm very happy with the experience. The wife only wanted a new Ghia 6 speed but I conned her into 'just trying the turbo'........got back to the show room and it was no contest! Even got the colour I wanted, charcoal or Ego I think it is. So now its got 3500 on the clock and I would like to do something with it, like more Kw! My question is, does just removing the exhaust bung alter anything else about the motor, like back pressure on the turbo and allowing it to maybe over boost, is this a possibility? Also what size cat would be better, 3" or 3 1/2"? I will eventually go to a tune shop somewhere and get a custom tune and whatever comes with that but just wanted to know a couple of things first. Looking forward to some replies......and by the way the sound system is utter crap, told the Ford dealer on my 3K service, met with glum silence and vague stares at the ceiling.