Here is my custom made exhaust for sale, it's 2.5" turbo-back. Fits standard turbo (+tts1, t25 etc.)
It has been on my GT for roughly 1000 miles and ran perfect with it, so much better than a standard system.
I had the decat redesigned as a flexi pipe to allow more room for the bore of the downpipe.
Really after around £250 for it, due to the amount of time it took to make the elbow and downpipe, however i'm open to sensible offers.