Warranty Vs. Upgrading

wHATZ SOME OF YOU FELLOW IMPORTERS THOUGHTS ON UPGRADING ON A CAR BUT BY DOING THIS YOU WOULD VOID THE WARRANTY- IN MY CASE I HAVE A 2002 SI HB 3yr warranty or 36k miles, I've had her a littlel shy of a year, but i am ready to start upgrading, matter of fact i just ordered my AEM CAI and if its here by SAT. i might just have it installed....help ..and i need some people to play devil advocate if you think that is needed???.....thnks