if its a d16z6 i'd stick w/ it. its a good motor to learn on thats what i did, my next car will have a b18 are more powerfull engine. I say a simple i/h/e or air intake/header/exaust. you could do all this for $500 or less if you buy used. a local muffler shop can hook you up for an exaust but please dont choose a tip that makes it sound ricey as ****. But when you can practice, practice, practice your driving. i can tell you 2 totaled car isn't fun. Good luck