Ok, this will be the last
post from me.
I would fully expect you to notice a difference when you install sprintbooster regardless of whether you have a tune. My only point was that if you already have a tune, your tuner can adjust your tune further to do exactly what sprintbooster is doing (actually it will do it better because it will keep WOT at full pedal travel giving you maximum throttle input accuracy). So you don't really need the sprintbooster. Installing it with your tune is going to have an effect ... similar to if you had asked your tuner to do some additional adjustments to the throttle maps in your tune without ever installing sb.
It's your car and your money, so you do what makes you happy
If the sb gives you what you want and you don't have to go back to your tuner, then cool
