hotstud737

I have a diablosport preditor tuner and have the performance tune for the 91 octane setting, What settings does the tune change from the factory tune? does it take off the speed limiter? Does it change the temp that the engine fan comes on? Also how much horsepower gain do I get from it. Thanks

Blue07GT

When you install it, it will ask you if you want to raise the speed and rev limiter. It does change the fan temp, which i lowerd it 20 degrees from what they had programmed. Keep in mind your fan shuts off after approx. 30mph anyways, the temps you change will only affect the fan at idle and low speeds. I'm not sure how much i gained, but i noticed a big difference when i installed my CAI and Tune.