With technology running wild these days, nothing is out of reach for even the grassroots racer or driveway mechanic. The ECU or "brain" is the most technologically advanced component of your vehicle is now able to be tuned or replaced using a standalone engine management system, which allows the user to create their own program to support their heavily modified engine, or a handheld programmer which comes pre-loaded with ready to use tunes that will increase the performance of your vehicle quickly and easily. We would suggest only the experienced tuner or mechanic set up a standalone engine management system, but a handheld programmer can be used by even the most novice tuners with a little research.