Most coolers for R33's have the inlet and outlet on the bottom so most piping kits will be the same. The difference is usually in return flow or over the radiator (for lack of a better description) cooler kits. The return flow will utilise your standard piping on the passenger side of the car, where as the over the radiator type will require you to cut a hole under the washer bottle somewhere to run an intercooler pipe up there and over the radiator to the crossover pipe
Theres less work involved with return flow, but you will probably still require to cut the front bar and maybe even the reo bar a bit.
If you are likely to get pulled over and have the police go through your engine bay then I would go return flow, Unless you make the hole you cut for the other type look like its done properly, or get it engineered.