Welcome to MLOC! Lovely car. I'm a huge fan of the 111r, and I hope you get the best out of it. It's good to have another MLOCcer in Cambridgeshire. I'm not sure there are so many others in the area, but you are a lot closer than me to the MLOC heartland, lucky man.
I'm not sure if you've thought about where to service your car, and there may be places closer and to the North of you, but I recommend GST Performance in Newmarket very strongly. Streets ahead of Hilton & Moss at Bishops Stortford.