I want to put on Vance & Hines True Dual headers with the stock mufflers & the Screamin Eagle Air Cleaner on a stock TC 88 Ultra Classic. Does it need a Stage 1 or similar, i.e. SERT, PowerCommander, etc...
you definitely need a stage 1. i would use the sert because if you add other performance stuff in the future you can remap. if you just go with the harley download you have to change everytime.