i had a s2 radtec intercooler fitted to my mk3 escort.once the front was cut out,and fitted s2 boost pipes and rad,it was pretty easy to squeeze in. THE BUILD quality of the radtec IS better than grs AS IVE HAD BOTH!!!!. as for performance a can honestly say i didnt notice any difference.(Im not sure about high boost though as the max i ran was 22psi). oh And MY tabs actually snapped off the grs......
sorry this is the only pic ive got with the radtec fitted:-