I love it... I was debating between that chip, the Eastern Aerospace upgrade, and the IPD Chip. I found out that the IPD Chip was required with a whole new $1000 exhaust system, to give you 53 hp. The PES Chip gives me 40 extra, while only having to spend $650. So that would be about 260 hp. I also added a KN filter, the torque converter from eastern aerospace, and the big bore exhaust TIP from IPD. I love the way the car is right now, I was debating a NOS kit, but I heard horror stories about how the longevity and stability of the engine gets effected. Well, I'm thinking about 275 hp at the wheels... I'll get it dyno'ed this weekend, and I'll have some formal results.
As for the PES Chip, it's great, I have noticed I don't have to get on the car that much, because of the extra power, and by doing that, I've saved some gas $$. Especially with these rising prices.
What car do you have daleonl1?