Sport Tune Only for EFI Live Spade

Features:

• Boosts power by up to 135 horsepower
• Delivers up to 243 ft-lbs more torque
• Most aggressive tune while staying emissions intact
• Provides fastest possible acceleration
• No more dead pedal or laggy throttle
• Firm and responsive shifting feel
• Ideal for drivers craving max performance
• Includes over 100 custom calibration changes
• Designed for EFI Live SPADE AutoCal v3
• 49 State Legal tuning solution
• Not recommended for heavy towing use
• Requires transmission tuning for best results

This Is The Tune That Changes Everything

If you're the type of driver who craves raw power and loves feeling every inch of torque when you step on the pedal, this Sport Tune is built just for you. It's designed to deliver the most horsepower and torque you can get while keeping your emissions equipment intact, making it 49-state legal and ready to run. With gains of up to +135 HP and +243 ft-lbs of torque, your Duramax will feel like a completely different truck. Acceleration becomes addictive, throttle response is instant, and that frustrating dead pedal feel is gone for good. Whether you're looking to surprise a few sports cars on the highway or just want that grin-inducing pull every time you roll into the throttle, this tune delivers. It’s fast, it’s firm, and it gives you that built-not-bought feeling without sacrificing reliability. Just be ready, this tune is built for drivers who want to push the limits and feel the difference every time they drive.

Built To Maximize Power Without Compromising Control

This custom Sport Tune is the most aggressive calibration offered by DuramaxTuner.com for your 2015 LML Duramax, dialing in over 100 precise changes to the factory ECU for optimized performance. At its core, it unleashes a peak output of 532 HP and 1008 ft-lbs of torque while retaining factory turbo-braking functionality and emissions systems. Calibration changes include advanced air-fuel ratio control to reduce soot, revised throttle response for quicker engagement, and firm transmission behavior to support the added power. It's specifically tuned to eliminate the dead pedal feel and maximize the truck’s ability to move quickly through its RPM range without hesitation. This level of performance does require supporting hardware, like upgraded fuel delivery and transmission tuning, to ensure longevity under stress. While it’s possible to tow with this tune, it is not advised unless you are actively monitoring your gauges and understand the mechanical demands involved. For serious performance drivers who want to make the most of their EFI Live SPADE, this is the tune that opens the door.

Fitment: 2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• This tune is 49-state legal and emissions intact.
• Designed for drivers who want maximum power output.
• Too aggressive for towing without proper monitoring equipment.
• Improper use can lead to high temperatures and mechanical strain.
• Requires supporting mods for safe long-term performance.
• Recommended supporting mods include: low-pressure lift pump, fuel sump, upgraded CP4, cold air intake, and transmission tuning.
• Not recommended for inexperienced drivers or casual daily use.
• This is a single tune and not part of a switchable tune pack.
• EFI Live SPADE Autocal V3 hardware is required (not included unless specified).
• Requires additional license if SPADE device was used on another truck.
• Best used as part of a multi-tune setup for occasional high-power use.
• Custom tuning includes over 100+ calibration changes from stock.