[ChevyHighPerformance]

I am not financially connected with PCMforLess, but they shared their unprotected tuning with me. They've done a really good job. On an 06 H3 you will notice improved low end grunt and improved upper end power. Shift points are changed and believe it or not the PCM changes do NOT compromise durability, gas mileage, or emissions. Based on my experience, if you have an auto tranny the PCMforLess will INCREASE your tranny's life. Emissions do not change for closed loop (part throttle) and the net emissions decrease for wide open throttle. Most people see improvements in MPG.

The rev limiter shuts off fuel when you exceed a certain RPM. The speed limiter shuts off fuel when you exceed a certain MPH. If you don't want the speed limiter changed then don't change it.

If you put on larger diameter tires without PCM adjustments, guess what you've effectively increased the speed lmiter. The PCM will think you are going slower than you actually are.