Does anyone know of a half decent Audi specialist based in Sounthern England where I could get my 110 Tdi serviced (100k)?

Does anyone have an idea of what would actually be carried out at a 100k service? (I had the timing belt replaced at 80k)
Rod

Has anyone ever heard of a RICA ECU Upgrade ?
I've just recently had one fitted to my 2001 1.8T in the UK, which has increased the power to 200 bhp (150hp@wheels). Lots of thrust and mid range torque to be had but the chip is unknown to me. Apparently teh software comes from the Netherlands. Any feedback would be much appreciated.