Honestly, if you want to go turbo sometime, I would hold up on getting stuff to make your car go faster. Yeah intake and header and stuff will add a few horses, but your gonna have to get rid of that stuff when you go turbo.
So I would start with suspension and drivetrain first. Things like springs, sway bars, clutch/flywheel, engine internals. Haha, but if you have the money for I/H/E now and turbo later, go for it!