If you need a good garage you cant go far wrong with stealth racing.
There knowledge of a2's is second to none. They have done my remap and fitted my fsd's with a 4 wheel alinement.
They have got a first class set up see
http://www.stealthracing.co.uk/4wheel.php
I know not to close at 63 miles away from derby, but you should be able to do it in about 1hour 20 mins. Well worth the trip in my option.
Hope this helps
David