Click the red text next to Sprint Booster in my signature.

They aren't cheap (new), but they definitely make the car feel like it has more pep out of the hole. There has been a lot of arguement about it, and there is a well written review on it telling how it works. It is posted under Simon's thread regarding Sprint Booster Review (search for it - within the last 3 pages of SRT6 forum).

99% of the owners like the results. I'd say .5% of them that DON'T Like the results feel that it is too aggressive (too touchy). The other .5% just weren't impressed. Makes me wonder if their was functioning correctly.

I have had mine off the car for the last week while a friend borrowed it to see if he wanted to buy it. I haven't had a chance to get it back and re-install. I will say that the car is a different car without it, and that the 'hiccup' and throttle lag is much more noticeable.

SQ