I just bought a vr statesman and am after any ideas without spending alot to make it quicker ..
cold air intake, chip, exhaust... but there just to name a few that cost little.. best bang for your buck is a supercharger.
5k+ injectors ,fuel system and tune then you have a car that goes pretty well but still isnt stupidly quick
doing an ffs search will help with your mods to
best mod you could do is put a V8 in it, $2000 should see you with all the stuff needed for conversion.