depending on miles id start with some basic stuff!! on thing i do is change the supercharge oil every 10,000 miles! u dont have to they call for 30,000. im just weird like that! also if u go to a 3.4 pully i would get a 160 drilled t stat, 2 ranges colder plugs i run ngk 55's and a 3 inch d/p to help flow! and have fun on thing that sucks atleast with my GTP is i broke 2 trannys,4 wheel hubs,4 cv joints,and factory motor mounts! even when these cars are bone stock the tranny will go as well!! i think my suspension went because i was hard on it!! enjoy the whine!!!!!! of the blower! these are great daily when i buy a new truck i plan on turbo kit!! o ya a good supercharger belt is a must to help slip issue!! i run a gatorback