the chap running this cooler bought it from me and when fitted to my car there was no overheating issues whatsoever. your best bet matey is, check water temp sender, change header tank cap, make sure there are no exhaust gases reaching your water which would indicate headgasket failure and change thermostat.

Has this issue just started as you have been running the cooler for a while now??? or was it like this since the day it came off the dyno???

By the way chaps this intercooler has the fans directly mounted to the rad and has two twin spal fans that are by far upto the job. Also the temperatures outside are not that high at the moment so he shouldnt be having issues.

Kind regards,
GAMBIT