Probably been asked a million times before but......I've just tried fitting a GRS intercooler which was bought of Rudey around 9 months ago

(do you know which model it is Rudey???) and I honestly can't see how it will fit without some series modifications!!
Can anyone provide me details on the best way to make it fit??
I did the following:
Removed the standard intercooler and left the radiator bolted on one side in its standard position. I then fitted a 10 inch Kenlowe directly to the radiator..... then I tried fitting the GRS....leaving about 5mm between the cooler and the centre nut on the fan the bonnet is no where near closing

Probably needs to go back about 2 inchs I would think!!