helping a friend with a f20

[twin_gsr]

does'nt know where to start. any mods to get it to run a bit harder

[2000Pimpinex]

What are his plans, NA or FI? If NA, I would start with a CAI, headers, exhaust.

[twin_gsr]

a bit new to this what does it stand for

[2000Pimpinex]

FI is forced induction, turbo, supercharger, nitrous.
NA is natural aspiration.