Hi Buggz
Prospeed in Cardiff is run by a guy called charlie.
If your a diesel you want a larger turbo downpipe, Decatted and a pipe straight from front to back.
No silencers and no cat, It will make the system very free flowing and it will rev so much better. Charlies the best around I've taken my car to a tuners up north and he asked me if Charlie made my exhaust system!
I also live about two doors down from Charlies workshop so when your down there let me know and I'll come over for a gossip!