4x4 Truck Performance Parts & Accessories - Electronic Hop Up

In addition to chips and modules, there are programmers. These handheld units are usually plugged into the computer and can be used to adjust fuel and timing as well as transmission shifting procedures and speedometer recalibration depending on the manufacturer. This is an entry-level system for adjusting the program that runs your engine.

For the maximum performance you should look at a tuner calibration program that will allow you even more adjustability, or send your computer out to be reprogrammed by a shop such as Turbo City. This allows your system to be adjusted both for the other modifications you have done as well as for the type of driving you do and what sort of response you need from your vehicle. Many things like throttle delay in drive-by-wire vehicles, torque management, and even traction control can be adjusted by a knowledgeable technician.

Many of the diesel performance companies are offering control boxes that can greatly improve power and torque numbers. One of the benefits of these systems in a diesel is that more fuel can be utilized whereas in a gas engine there is a point of diminishing returns if too much fuel is applied and the truck is running very rich. In a diesel, that fuel can increase the power much more efficiently though this doesn't mean that a hopped-up diesel is going to still run its stock mileage numbers when run at the highest setting. As with everything there is a price for performance, but in today's truck market diesels are the powerhouse players.