Reviews: Jet Performance Products Program For Power Jet Performance Programmer

This product worked great for my intended purpose, witch was to adjust my shift points, firmness as well as correct speedometer and remove my speed governor. I'm a lil skeptical as to the engine proformance and RPM rev limiter adjustments this item does because I didn't notice any change. I tryed several different types of fuel and several different setting and didn't notice any proformance gain there.perhaps I need to advance the timing a lil? Also the rev limiter never goes past the 6000 RPM no matter how high I change it in the ECM using this device. So I'm guessing my engine is limited to that do to still running stock cam and heads. Aside from better exhaust, intake, injectors, throttle body coile and wires it's a stock engine with 216k miled on it. Still I would have though I'd see a better gain in proformance or MPG witch was a lil lacking I think. Overall great product and is worth it for the things I mainly got it for.

This was the best $$ I have spent on performance! Immediately noticeable increase in power with some help on shifting. Gas mileage 17mpg city - 22/24 highway. 27HP gain on mid-grade octane. Worth every penny!