Bully Dog
Bully Dog Performance Tuners, Performance Programmers, Monitors and Mounting Solutions For Gas and Diesel Vehicles
Bully Dog began in American Falls, Idaho in 1998 as an enthusiast business focused on improving diesel engine performance. Since then, the brand has come to stand for leading-edge engine ECU calibration, high-quality aftermarket parts, and precision data-logging & monitoring technology. With a talented and well-rounded team of designers, engineers, quality control professionals, salespeople, and customer support staff, Bully Dog continues to produce innovative technologies that make use of advances in mobile computing, Wi-Fi & Bluetooth communication, cloud computing, and performance monitoring to deliver unparalleled performance. As a result of its recent merger under Derive Systems, Bully Dog, Bully Dog Big Rig, SCT, and Derive Efficiency brands have integrated into a world-class operation and a dominant force in the automotive technology space. The current Bully Dog offering includes GTX Performance Tuner & Monitor, BDX Performance Programmer, GTX Watchdog Performance Monitor, GT Diesel Performance Tuner & Monitor, GT Gas Performance Tuner & Monitor, Bully Dog Thruster Throttle Booster, Gauge Pods, Pod Mounts and more.
Bully Dog is at the forefront of performance ECU calibration technology for gas and diesel vehicles looking to add performance, tackle tough terrain, haul heavy payloads or tow trailers over long distances. Bully Dog calibration software platform adjusts key performance parameters to better respond to the unique demands you put on your vehicle, whether it's adjusting for tire size, axle lockers, throttle sensitivity or shift firmness. Easy installation using one of Bully Dog’s advanced handheld programmers means quick, out-of-the-box access to better performance, added safety and improved fuel economy. Bully Dog also offers a precision-engineered, top-quality line of performance intakes, diesel particulate filters, manifolds and turbochargers to help vehicles run stronger and last longer. Accesspeed is proud to offer Bully Dog products to our customers. With our lowest price match guarantee, you will always find the best combination of price and selection at Accesspeed.
Engine Management & ECU
Stand Alone Engine Management Systems and ECU
What is stand-alone engine management system? A stand-alone engine management system (stand-alone ECU) is designed to tune your engine from scratch and provide complete control over the engine tuning and performance. Standalone ECUs are available from a wide range of manufacturers and are developed with the ability to control almost any engine you want.
What does an aftermarket ECU do? An aftermarket ECU (engine management system) allows you to adjust every aspect of your engine, from fuel and ignition mapping to traction and launch control, and control all features and functions of the engine.
How does a piggyback ECU work? A piggyback ECU is designed to work with the factory ECU and intercepts the signal from the sensors before the factory ECU, modifies (tricking your ECU) those signals, and makes your engine perform the way you want, based on the piggyback programming.
Do you need an aftermarket ECU to tune? If you just want to maximize slight modifications like air intake and exhaust systems, you will most likely be able to tune and program your factory ECM to meet your needs, using a handheld programmer or chip. However, if you are converting your vehicle into a race car or off-road vehicle, an aftermarket engine management system will work great.
What is a stand-alone fuel management system? A stand-alone fuel management system allows you to set, manage and modify fuel delivery to your engine. These ECU systems are designed to achieve maximum horsepower and torque.