Another quick update.
Original clutch started slipping, so in went a Southbend kit with SMF and fired on the gearbox from my old car complete with the Wavetrac. I am now running Pro Race 1.2's and 888's all the time now too - car goes very well. Also refitted the light battery permanently to the car as its loads lighter than the OEM battery.
Also, having tried and tested intercooler combo's, I am having a Pro Alloy Intercooler made to "Cupra" spec having sent my original to them and they will modify their S3 one to suit the Cupra pipe connections and fitments. That will mean another intercooler option will be available off the shelf for Edition 30's/GTI's/Cupra's/Fr's. This core is reported by one tuning garage to be more efficient than a THS, recovers quicker, is more free flowing etc - and these guys have tested S3/THS and Pro Alloy Intercoolers. On top, it is very light, obviously of decent quality as it is OEM fitment on the Focus RS500 and the finish/quality is superb. Twintercooler and S3 core coming off the car within a week or so
