I will sound off also and say that headers won't really do much but make noise and usually they just end up leaking, bolts come loose all the time.
get the tune.
then if you still want to spend money, cam, heads, supercharger, etc
then you have to upgrade all the stuff behind it or it just breaks..........
get the tune.
then if you still want to spend money, cam, heads, supercharger, etc
then you have to upgrade all the stuff behind it or it just breaks..........