ya, i have been thinking about that...

would you actually notice quite a diference, in acceleration, ect, as soon as it was bolted on, and driven?

 

I noticed a definite improvement in acceleration right away. My truck won't light the tires up or anything like that, but it was definitely "snappier". I did not notice any improvement in gas mileage, but with all the mods I have my gas mileage has not increased, so I guess it isn't going to get any better no matter what. It helped take the "mush" out of the pedal, and when you look at the difference between a stock tb and a fastman, you know it has to be better! I spent $99 to have the dealer clean my old tb, before I knew better, It would have only cost me another $125 just to get a fastman and be done with it.......had I known then....