oo thanks both guys ^^ thank u danny, yes that hks manifold also has my name on it, probably buy it like 3 months i get off my p's or earlier, so like 18 months from now..haha at the moment imma go with the hi flow cat and 2.25" muffler and cai....i need the 2.25" for the compression otherwise it would make my car go slower without the turbo, the 2.5" offers quicker spooling but i dont think thats really gonna bother me~! thank u for all ur inputs, now i just gotta find the right dump, ecu and turbo and intercooler/piping