Absolutely, check out this thread at the link below here:
It basically describes what the first mods should be for your ride, which i agree with totally, Intake and exhaust. How efficiently your getting air in and out of your engine is major.
here's a link below to a thread with a cool collection of 420A videos you can check out. If you see something you like, don't hesitate to send a fellow N/T guy a PM to ask for guidance, do some searches or post some more specific questions with what exactly your looking to achieve next.
Good luck man with your ride, enjoy it!