I bought one of the Pro Formance chips off ebay last week and it arrived last night; I'm in Aus and because I never bothered to set up a PayPal account I got my mate to buy it for me cos he had. After it arrived he calls me up and tells me not to worry about paying him cos he was giving to me as a birthday present. Jezza: 1, World: 0.
So I go over his place and the we had the chip in and the car running in under 20 mins. Jezza: 2, World: 0.
I pulled out of his garage and IMMEDIATELY noticed it performed better in first. Jezza: 3, World: 0.
I pulled out of his street onto a wide main road. Every time I make this turn I swing out my rear end. Today was no different however there was definately more power because doing the same sequence I always do and the change into second pushed the rear out further than it normally does. Jezza: 4, World: 0.
Next set of lights I did a 3k dump to see how fast it got to 100km/h. The shift from first to second was orgasmic. Because the engines goes to 7k now the gearing means the shift into second leaves me right in the thick of the power band and the rear end was saying "hi, don't forget about me

~~" in the change to second. Also, I think it got to 100km/h in 2nd; if not, very close. Jezza: 5, World: 0.
"Lets go teach some ricers a lesson" says my friend in the car. I oblige, quite eagerly

...
Victim 1: Riced up new Toyota Corolla - 2nd gear rolling start. Fairly convincing beat, but that was to be expected.
Victim 2: Mitsubishi FTO - 2nd gear rolling start. He had an initial lead but the extra high end power coupled with the extra 500rpm meant I ended up taking him.
Victim 3: Skyline R32 GTS-4 - Set of ights. I figured this guy would rip me a new one but I wanted to run him for the pure fun of it. 3.5k dump and I killed him off the line then he backed out! He was boosting like it was on sale for $1 but just didnt get off the line. At the next set of lights he winds down his window and asks me if I have a turbo ! Jezza: 6, World: -1.
So to sum up, the chip increased the rev limit so I don't have to change as early and when I do I shift into ~4.5k, seems to have increased torque and theres a marked difference above 5.5k. Plus maybe I can squeeze 100km/h out of second.
All in all; best birthday present ever! I whole-heartedly endorse this product and/or service!