[quote name='raskL' timestamp='1343309216' post='196693']
yeah, the first thing you should do is to remap the ecu, theres loads of decent places out there or you can buy your own console from someone like superchips, youll get instant power and torque gains and then you can do custom mods from there, if you just put a big exhaust on and upgrade the intercooler and intake you probably wont notice any difference, the point is that these engines are still tuned to get fuel effieciency and to run on lower grade fuels than we have in the uk, so increasing airflow and stuff can actually make the engine back of slightly the ecu is constantly monitoring everything from air / fuel mix right down to emisions and tempratures so if airflow is increased, the engine doesnt need quite as rich of a mixture of petrol etc etc...
the point is in my opinion remap and then go from there
He may go backwards if he follows your advice,,,, by all means get a remap, IF your going to leave it at that. But get a remap first, then changing other things like air flow and exhaust systems will result in the remap needing re-mapping again because the circumstances have changes within the fueling etc........ So my opinion, is remap if your happy that will be enough, and your on a budget. If not, the the world is yours to explore.