Well they will throw the car up on the dyno, hook up the wideband o2 if they are gonna do tuning..I assume since you have hondata they will have the stage 4 software needed to tune. Anyways they will make an initial pull to see how the a/f ratio looks. From there they will start making adjustments to get the a/f ratio perfect, and make good power throughout the rpm band. It's pretty cool to go and see what goes on. Good luck!