Our stock of Pontiac Grand Prix horsepower tuners are designed by the engineers at Quadzilla, Edge, Diablo Sport and Bully Dog. These captains of the Grand Prix fuel monitor industry custom-craft their Grand Prix performance programmers for your specific automobile, making for an easy install and a superior fit for your unique model. Here at AutoAnything our selection of top quality Pontiac Grand Prix performance monitors give you a view of multiple parameters, allowing you to keep an eye on nearly every aspect of your car's functionality. What's more, our Pontiac accessories are backed by a 1-year lower price guarantee, ensuring you receive the best deal around.