Well, as he said, it seems the R33 GTST one lines up all fine and stuff. So any hybrid/chinese style cooler pipes.
So basically, any jap pipe kit would work, but the issues with those pipes kits is that you have cut a hole in the body under the battery tray, where here in tightass victoria, that could cause problems with the po-leece. Naturally, the water bottle needed to be moved, ive noticed that in the stagea they are extra extra large (i think i put 3L in mine last time i filled it up)
Its good to know now that the R33 GTST pipes fit. Thanks mate.