Hello and welcome.... Its always safe to go with lowering springs/shocks (i group them together because you should get both at the same time) and wheels first. Theyre *relatively* cheap and perfectly reliable... Engine work is more of a big endeavor, and it'll take plenty of research and thought to figure out exactly what you want to do--there are tons of options. Do like I did--nice suspension, nice brakes, and then start saving for the power you know you'll eventually want.:thumbup: