When I'm sitting at a stoplight, and the lane ahead merges, it's nice to have a more linear feel as to how hard I need to accelerate to beat the other traffic. Before the SB, there was no knowing when the throttle lag would end, I just had to floor it to accelerate quickly.

Another example. I want to pass a car doing 40. Pre-SB, I would push the accelerator, but nothing happens! I push a little harder, nothing much yet,... finally I just push it to the floor, and I scream ahead. Thats not good driving. With the SB, you know just how fast per pound of effort on the accelerator your going to go.

Is it worth the money? I don't have dollars to throw around, but it was worth it to me.