hi all. Im looking for a few parts....after i had an astra 2.2 coupe bertone for as little as a month as some idiot in a porsche pulled out on me on the a1 and wrote it off, i now have an astra 2.2 sri and looking for mods. Ive took the pre cat out today. the airbox mod was already done and i hhave a custom cat back system. Now im looking for these parts, 2.4 inlet manifold, polished and ported throttle body, 200 cell cat, fast road cams and a 4-2-1 exaust manifold. Ive searched google but i must be doing something wrong because i cant find much. I know courtenay are good and i'll use them for remapping but if poss i would like a cheaper option to them....Any suggestions appreciated