Yes i did , i was thinking about getting one myself and everybody that i talked to said nothing but good things about it. I was at the dragon this year and talked to alot of people that liked it. So i thought i would get one, but being a auto tech i wanted to know how it worked and what it did, had found some info about it and thought i would check it myself, So i got ahold of a buddy of mine that had one, So i scoped the tps and watched other sensors to see if it did anything else. What i found was it open the throttle to full open with the gas pedal about half way down, The responce time had a very small improvement so small theres no way you could tell it. it does make the car feel different but if you push the pedal to the floor it does the same thing. If it had changed lag time to the ecm or opened the throttle more at wide open throttle then yes it would be worth it but it doesnt the only thing it does it it keeps you from pushing the pedal all the way down to achieve full throttle so for 300 buck to push the pedal half way or all the way down. It doesnt change timming curves injector pulse width, It just simple changes how far you push the pedal. ECM, BCM, CAN, The computers in cars have gotten very quick with com times(talking to eachother) So if i had seen that had changed there Then yes... but it doent Yes it makes the car feel different, but you can do the same thing by just pushing the pedal to the floor. Belive me when i say i was going to buy one, thinking it changed more than the pedal travel but it doesnt. The file i added had the charts and did pretty much the same thing when i tested it myself. i have what it called a verus scanner made by snap-on very expensive but very good i can watch in real time what every sensor in that engine is doing so what i am saying i promise is true, and i do agree it does make your car feel different but for 300.00 bucks and i can do the same thing without it. well that just my thought about it and im sure theres quite afew that would differ with me, But the numbers dont lie. the only reason i posted it is its what i found and i was going to buy it, so i choose not to. i think you could spend the money somewhere else for a better and real improvement, Theres really nothing that compares to real HP...Tunning a ecm Yes ..timming curves ,injectors,temps, air fuel, But sprint booster NO . But thats just my opinion and dont forget you asked LOL... Sorry if that was too much , but its what i found
Thanks
Mike and Kathy