I had the power package from frpp. It came with their 91 octane tune. Brenspeed's tune gained me 7hp all up top the gains start at about 5500. If you go to my garage you can see the dyno sheet. Not trying to talk you out of brenspeed they are great guys and im happy with the tune. that was on top of a 91 tune from frpp that is suppose to be no good according to many people. so i dont know what you would get going from one 93 tune to another. Will they email it to you for your diablo becuase i know brenspeed uses the xcal. but if they will email the tune to you for 75 bucks i guess its worth a try. There might be other benefits such as pedal response and so forth. Are you using a canned 93 tune from the diablo?i have diablo 93 tune now how much differance with a race tune from bama or brenspeed.is it worth the money and trouble.
My car deffinatley feels a lot different with brenspeeds tune.