There was a discussion about this a couple of weeks ago and I've always wanted to do it. My mate has a TT and changed his standard system for a blue-flame so had his standard one lying around and he said if it fits without major modification then I can have it. I do want oval pipes as the circle ones don't fill the cut out properly so I will eventually buy an uprated TT or R32 system then modify the tips, but as I'm broke and this was free, this will do for now. So this was what my bank holiday consisted off. I don't have a picture of the comparison between the TT and S3 exhaust but they are pretty much the same but has one less mount and as the TT has a slightly shorter wheelbase, the exhaust was about 4 inches shorter. So I cut 4 inches off the end of mine and welded in on the end the TT's Then did a trial fit and started it up to check for leaks, there wasn't any I then started to attack the bumper, I first made a template out of cardboard. Then I measured about a million times where the original cut out for the exhaust was and replicated that on the other side and drew round the template. Next was the scary bit, attacking the bumper. There's probably better tools to use but I just used an angle grinder and a steady hand, I did keep thinking that it would suddenly bite and I'd cut my bumper in half but fortunately it didn't Also had to cut away the metal behind the bumper. It needs a little tidying up with a bit of sand paper. (which has now been done) Time to fit the thing now. Couldn't find my drivers side mount n spend most of the day looking for it but to no avail, so I just made one out of a piece of steel, a long bolt and an exhaust rubber off my dead Alfa. The finished product....for now! I know it's probably not everyones cup of tea but a lot of things that people do on here doesn't please everyone as we all have our own taste, but I'm really happy with how it's turned out and can't wait to get oval tips.