Well, I'm still testing mine out, I will be resetting the throttle today and try driving for a couple more days to see if I get any changes.

IMO, I don't like driving the car as a daily driver anymore! 1st gear is way to twitchy to put up with, I have difficulty holding rpm in 1st. because it only takes about 1/2" of pedal travel for the motor to take off like a bat out of hell. Then I would let go of the throttle and slowly try to creep up on it, then wham, I'm off again, feels like a bucking bronco!

I tried taking off in 2nd from a stop, but it requires higher rpm and longer clutch engagement time, and most likely higher wear on the clutch. This is something I would like to avoid because a new clutch isn't cheap and a big pain in the a$$ to install.

Otherwise I love driving with it, I really like the low end response from 2-6th, almost feels like the torque is coming in sooner on the power band too. Even 6th gear is a big improvement on the freeway, I keep finding myself looking for another gear to shift into because I think I'm still in 5th while driving in 6th.

so right now I'm on the fence about the drivability of this product for street use. I might be removing mine soon.

Oh yeah, I forgot to mention, with the sprint booster, I sucked down a half a tank of premium in two days, I drove 85 miles so that was roughly 11 mpg. That's because I was having too much fun standing on the throttle, so to clarify, this is not going to improve your mileage, but it will put a smile on your face!