Triple Dog GT Platinum Diesel Downloader – Bully Dog 40420

Unlock more power, better efficiency, and complete control of your diesel truck with the Bully Dog Triple Dog GT Platinum Diesel Downloader (part #40420). This all-in-one device combines a performance tuner, real-time monitor, multi-gauge display, and diagnostic tool in a single compact unit.

Simply plug it into your OBD-II port, download the tune, and go. Switch power levels on the fly, track critical engine data, clear trouble codes, and improve your driving habits with the exclusive Driving Coach—all without adding separate gauges or complicated wiring.

Key Benefits

• More Horsepower & Torque — Preloaded tunes deliver significant gains (vehicle-dependent). Typical results include 50+ HP in Tow/Economy mode, 75+ HP in Performance mode, and 100+ HP / 200+ lb-ft in Extreme mode on many applications.
• Improved Fuel Economy — The patent-pending Driving Coach provides real-time visual and audio feedback to help you develop more efficient driving habits. Users can meaningfully improve mileage by adjusting throttle, braking, and shifting behavior.
• All-in-One Monitoring — View over 15 vehicle parameters on the full-color display, including boost, fuel rail pressure, EGTs (with optional probes), coolant and transmission temps, real-time/average/trip fuel economy, RPM, load, and more.
• Safety & Convenience — Safety defueling based on user-set parameters, on-the-fly power level changes, DPF burn-off initiation on supported models, and the ability to read/clear diagnostic trouble codes.
• Easy Installation & Updates — Plug-and-play setup in 20–40 minutes. Free internet updates keep your tunes and features current. Stores up to 10 custom tunes (sold separately through authorized dealers).

Featured Capabilities

• Four power levels: Stock, Tow/Economy, Performance, Extreme
• Full-color display with multiple themes and day/night modes
• Universal suction-cup mount included
• Speed limiter, rev limiter, speedometer calibration, and transmission tuning options (where supported)
• Vehicle-specific download features

Vehicle Fitment

• Ford Powerstroke: 1999–2019 (7.3L, 6.0L, 6.4L, 6.7L) – excludes most 2013+ cab & chassis and certain transfer-case configurations
• GM Duramax: 2001–2016 (6.6L)
• Cummins: 2003–2021 (5.9L / 6.7L) – 2013–2021 models require a separate unlock/bypass cable (typically #42214 or #42215)

Important Notes: This product is not legal for sale or use on vehicles registered in California or other states that follow CARB regulations. It does not support emissions deletes. Power gains and available features vary by year, make, model, and engine. Always verify exact fitment for your truck. Optional EGT probes sold separately.

Transform the way your diesel works and how you drive it. The Bully Dog Triple Dog GT Platinum delivers measurable performance, smarter monitoring, and real-world usability in one proven package.