Is that the Casper multi-position thumbwheel chip? If so, I have one, and it isn't bad. There are more hardcore chips and others with a lot more fine tuning capability, but for a beginner and/or pretty much stock car, that Casper's chip is nice. My car idles better, runs cooler(because of lower temp fan turn on), etc. I like it mainly for the diff octane choices and the anti-theft option. As far as performance, it depends on what setting. The 92 octane might give you 20-30HP. But, once you start getting into higher boost you better have a scanmaster to keep an eye on knock. As you get more into these cars, you might "outgrow" that chip. For example, I have a SMC alcohol kit that I will be installing this spring. Once that and my bigger injectors are in, I might go with that TurboTweak chip. I hear they are the way to go for alchy setups.