I fitted one of the hybrid copy kits onto a series 1 r33 not long ago.
The cooler will fit but you have to cut away some of the bumper support, other wise you have to get an aftermarket front bar. The bumper itself has to have a fair amount cut from it aswell as the fog lights , they will have to be trimmed .
This all depends on where you mount the cooler but with the piping kits you are restricted on where you can mount it.
Hope this helps... cheers