Discussion Starter · #1 ·
Hey everyone, im currently tuning for ethanol and 91 mix on my GTX2867R .64.. Wondering if their is any worth doing a 100 octane tune on the stock fuel system? Just contemplating if this will get me another 20-30hp to hold me over till I get my Aux Port injection come Christmas time. Anyone out their tuned on 100 octane with this turbo? Curious on numbers...