Hi need some info my best mate has just purchased a new i/c a RADTEC front mounted one.Since doing this his cars been basically overheating he got a fan with the i/c, when temp rises the fan comes on as norm but does not bring temp back down.When driving its sits about M on the temp guage as as u stop it goes of the scale the head gasket went due to the temps.Been on the phone to RADTEC and said it might be the rad/blockage etc, so changed radiator,still no joy then they gave me bigger fan again still no joy and its a S2 RST they said have never had this problem before but my mate has came to one conclusion take it all back out and go back to standard i/c, ive run a GRS i/c and dont have this problem on my S2 any help guys would be much appreciated. Ayrshire RS crew!!!!!!