ok.. i'm not tryin to be an azz or anything but seriously for the amount of money that your going to spend on a cold air intake & a header & what not.. just save a lil more cash up & home make a turbo kit!.. WAY more improvement! check into it.. b4 u start spending money.. u'll be glad you did. Or even find someone who has the mods that your currently looking into & got for a spin with them. just my .02
best of luck with what ever u decide tho!