Thanks for your help guys, but it turns out the coilovers i bought are fine.
The place i took it to just didn't know how to install the rear ones (i admit, they are abit different to the way most coilovers are installed). The rear coilovers have a top "hat" on top that needs to be pulled off and bolted in from ontop of the bodywork, while the rest of the coilover goes in from underneath the bodywork (like most coilovers do) and then bolted to the boldywork and top hat together.
With a little searching of ClubRSX forums i was able to confirm this and get some pictures which i showed to the suspension place to install.
Bookmarks