Tune seems great, just as described in other review. I had to add the High Turbo to match up the 498 PP shown, even though adding a turbo is not listed in chart. Still unable to match the horsepower described but hesitant to try a oil change because that will mess up PP. Drives great, though. Just remember to break early, as was said already; however, I've been driving it on SS vs. RS, with a little less ballast to get up to 500 PP. I might try dailing up the brakes a bit to suit my driving style.