Performance parts are the official importer and distributor. I?ve ordered from them recently and they were very helpful too. They are based in Northampton. http://www.performanceparts-ltd.com
+44 1327 706 139
I?m pretty sure Performance Parts and Calsport work together as I?ve order the same part cheaper from Calsport but the part actually came from Performance Parts.
Yes, Calsport get their Gilles stuff from Performance Parts - I had to return a Gilles part I bought from Calsport direct to PP. PP link back to Calsport to send them the new part. I've just heard from Calsport today that the parts which were gonna take 4-6 weeks will be a further 4-5 weeks as 'they're coming from Germany'. No mention of any import tax mind!