Bully Dog Big Rig ECM Tuner | Cummins | CAT | Detroit | Mercedes

In today's environment, every mile and every penny counts. Whether you operate a fleet of trucks, or you're an independent owner/operator, every tenth of a mile-per-gallon increase means cash in your pocket. And of course, a few extra ponies under the hood never hurt anyone either! The Bully Dog ECM Tuner is designed for effortless performance tuning. This device comes preloaded with the same dyno-proven tunes as the HDGT gauge tuner, except it can be conveniently stowed away, allowing you to set it and forget it. Additionally, the ECM Tuner offers diagnostic trouble code reading and clearing capabilities, while also providing fully customizable Speed Limiter adjustments. Take advantage of the three available preloaded tunes to boost your vehicle's horsepower, torque, and fuel economy, empowering your rig to conquer any obstacle on your journey.FEATURES & BENEFITS: 15-18% Power Increase 6-12% Fuel Mileage Increase Speed Limiter Adjustments Diagnostic Reader