I have a 2008 grand prix "base". even though its base, the performance made me a fan. its true what they say about grand prix's as being clutch in the heat of the moment. i really want to know how i can make my N/A 3.8 a car that will grow with me, by increasing the performance. i saw some one mention a top swap, to a super charger..............realistically improving on the guild work would be my first choice, headers and intake. but im not to shabby with stronger injectors or spark plugs. What are some things i can do as an in depth stage 1 step up.
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