im gonna get a DSM AFC and a 2.5" MAM midpipe. im getting a S and J pipe later on down the road and a Greddy SP2 exhaust. does it matter what order i buy all of this stuff...or what order i install them. for summer i want to do just the midpipe and afc, and over the course of fall and winter i wanna order the rest of the stuff and put it on in spring.