Lookin for next mods to add with MCC

Well think im gonna try Dave and the MCC. Just wondering what else i can add with it to get the most for my money. Thinking maybe studs and air dog for added protection with the MCC but is there anything else for performance. Would like to keep stock VGT for now until i can replace trans.

Quick run down of what i already have
MM w/trans tune (HD.39)
5" tbe
gdp S-3 w/boost tube
gdp air boss kit
S&B CAI w/scoop