If your looking to get the most power out of your new cold air intake or exhaust for your 1998-2010 Mustangs or you need to re-calibrate your speedometer or tachometer due to a tire or gear change check out the Predator handheld tuner by Diablosport. The Predator is easy to install and with its push buttons and LCD screen you don't need to be a computer wiz to use it. It comes with the following 3 tunes performance tune for 93 octane, performance Tune for 91 octane, and a performance tune for 87 octane. In addition to these preloaded tunes you can change your timing and fuel points as well as remove a rev limiter or speed limiter. For learn more about what this tuner offers and to order check it out here.