Not sure which 2007 Mazda 3 Performance Chips & Programmers are right for you? We have over 7429 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I am very satisfied with this product! It works as advertised. Although, it only allows either the regular or premium gas tune, the top speed limiter, and you can raise the fuel cutoff by 500 RPM. I was hoping there would be a setting to adjust shift firmness and shifting points. The plastic housing on the programmer looks cheap but I don't care about that when I'm driving my car.
When I first plugged the programmer into my diagnostic port it read my ECU for 30 minutes after which I got a message "Cal Not Found". I installed the provided disk on my computer and updated the software for it. Then I downloaded the latest Calibration for my car. Went back out to my car and the programming process only took a few minutes.
I notice the most improvement in low end torque and the engine feels more crisp all the way to fuel cutoff. I have several other mods on my car including exhaust and intake and it feels like it adds around 10 hp. I'm guessing gas mileage increase is around 1-2 mpg. I haven't had it installed long enough to get a good comparison." —Matthew T from Fort Worth, TX bought a Hypertech Max Energy Sport Programmer for a 2007 Mazda 3, s, 2.3L 4-cyl. Engine.