Sport Tune incl EFI Live SPADE

Features:

• Includes EFI Live SPADE hardware
• Emissions equipment stays intact
• 50 State Legal tuning solution
• +135 HP and +243 ft-lbs torque
• Fastest acceleration available for this platform
• No dead pedal feel under throttle
• Firm and responsive shift strategy
• Custom tuning with 100+ calibration changes
• More power and less soot than box tuners
• Ideal for performance-built trucks
• SPADE supports multiple VINs and updates
• TCM tuning recommended for full performance

This Is The Tune That Turns Heads And Tires

If you're chasing the thrill that only raw diesel power can deliver, this Sport Tune is built to light up your Duramax. Designed to give your 2014 Silverado or Sierra 2500HD/3500HD a whole new personality, this tune delivers a punch of +135 rear wheel horsepower and +243 ft-lbs of torque. It’s not just quick, it’s the fastest acceleration you can get while staying 50-state legal. The throttle feels alive, the shifts hit harder, and your truck pulls like it’s never pulled before. This is the tune you throw in when it’s time to flex on the pavement or tear up your favorite stretch of road. And when paired with the included EFI Live SPADE hardware, loading and managing the tune is simple and reliable. Whether you’ve got future plans for performance upgrades or just want that extra edge now, this is the one that delivers the most grins per gallon. Just be warned, this much fun comes with serious power, so keep an eye on your gauges and save the towing for a milder tune.

Built For Big Power Without Sacrificing Safety

Behind the wheel, the Sport Tune is all about pushing your LML to its peak performance potential while protecting your truck’s key systems. This custom calibration includes over 100 changes from stock, offering optimized power delivery without the need for tampering with sensors or control units. It maintains full emissions compliance and uses SMART EGT and air-fuel management strategies to reduce soot under heavy throttle. The included EFI Live SPADE makes tuning straightforward with simple data logging, scan tool functionality, and the ability to flash updates or support multiple vehicles. With a total output of 532 HP and 1008 ft-lbs of torque, this tune is ideal for trucks with upgraded intakes, fueling systems, or built transmissions. DuramaxTuner.com recommends TCM tuning for best results, especially if you’ve made drivetrain modifications or run larger tires. And while you can technically tow, this level of power is best reserved for controlled driving environments and trucks with supporting mods already in place.

Fitment: 2014 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Most aggressive 50-state legal tune offered.
• Best for experienced drivers with mods.
• Not safe for towing without proper gauges.
• Use only in competition or private settings.
• Includes EFI Live SPADE with license.
• Improper use can damage engine or drivetrain.
• Works best with Switch On The Fly setup.
• Transmission tuning strongly recommended.
• Ideal for trucks with big tires or turbos.
• Needs extra license if using old SPADE.
• Keeps emissions intact and is 50-state legal.
• DuramaxTuner offers U.S.-based support.