Oh, also upgrade your plenum while you are at it, you won't see a damn thing for gains if you stick with the stock plenum. Accufab is the best one, Trick Flow is easily the best one for the money.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.