I had two previous cars with 009 and RA chips, just could not get it to behave. It never idled properly, and was way rich on the bottom. I had Eric @ Turbotweak make two chips and the difference was night and day. As soon as the car started up I knew there was a difference. Idled smoothly and runs better with a little more boost with no KR. Some people have had great luck with RA and 009's, I just wasn't one of them. Good luck. Kevin