OZ Rally FRIENDLY advise please

I just recently bought an '03 OZ Rally Lancer (got an awsome price in a last minute situation). Although, I am looking to upgrade its engine alittle to make it stronger(and funner to drive) while I raise the money to buy my dream tuner. The truth is I know close to nothing about tuning Mitsubishi's and would appreciate any advise or suggestions on parts to get and not to get, any things else would be awsome too. Ill take all that yall are willing to give.

http://www.roadracemotorsports.com/lancer.htm
check them out they have lots of great stuff for the lancer

a good cold air intake seemed to help the most on my OZ. Nitrous worked well too until a piston let go.

The weakest link to the lancers are the pistons and rods, so if you want to really tune your car get those replaced... den you can shoot nos or use turbos at higher psi's