of engine
u can change air filter (K&N o open pod like apexi's)
denso idrium spark plugs
lightened & Dampered Crank Pulley
Port n polish
Performance Cam shaft
Adjustable Cam Gear
form work exhaust system (4-2-1 til the end :P)
seems to be in the market there are variety of Intercoolers with all kind of size and diameters
My question is, how to choose the right I/C for out right settings, i know the scope is big...but how...