No need for that shifter unless you need to go to a manual valve body for whatever reason. The computer will shift more consistently and at the exact correct time and can be modified for different needs like drag racing or DDing or whatever.
I'd j-mod your automatic trans and see how you like that first.
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 ****.