A quick way to get more performance out of your American made truck or sports car is with a Bully Dog programmer. There is no need to pull out the overalls and crawl around under the vehicle to add more power with this device. The Bully Dog Power Pup programmer simply plugs into the diagnostics port underneath the dashboard, and by answering a few simple questions, you can dial in the maximum performance that is hiding within your current engine. When a vehicle ships from the factory, it is not tuned for performance, but rather for the most efficient operation in any condition. The Bully Dog programmer replaces the conservative engine parameters with sportier numbers. By adjusting the spark timing, the air to fuel ratio, and several other specifications within the engine’s computer, the Bully Dog programmer instantly and effortlessly gives you more power. It will also remove the top speed governor for higher speeds, which is handy if you are lucky enough to have a closed course on which to drive. In vehicles with an automatic transmission, the Bully Dog Power Pup programmer will also adjust the shift points and shift firmness, for smooth delivery of the extra power. It can also remove the RPM limiter, so that more of the power in the high end of the acceleration curve can be used. The Bully Dog programmer does its work without risking any damage to the engine or the transmission, and it monitors vital statistics to adjust for any problem it may encounter. The Bully Dog Power Pup programmer is a very valuable piece of equipment for the serious driver, and with our quick shipping it can be in your hands soon.