Street Tune incl EFI Live Spade

Features:

• 50 State Legal Emissions Intact Tuning
• Includes EFI Live AutoCal V3 Programmer
• Gain +110 RWHP and +198 ft-lbs torque
• No dead pedal sluggishness
• Faster acceleration and lighter throttle feel
• Smooth power curve with daily drivability
• Retains full factory turbo-brake function
• Over 100 custom calibration changes
• More power and less soot than box tuners
• Simple OBD flashing with handheld device
• Scan tool and diagnostic logging included
• World class phone support from real experts

Feel The Street Tune Come Alive On Your Drive

If you’ve been looking for a way to wake up your 2015 Duramax without sacrificing daily drivability, this Street Tune might be exactly what you need. It’s the perfect balance of punch and control, giving your truck faster acceleration and that lighter feel underfoot without turning it into something unruly. You’ll feel the difference right away with smoother throttle response and more power when you ask for it. It’s ideal for guys who commute during the week and haul the toys on the weekend. This tune adds +110 rear wheel horsepower and +198 ft-lbs of torque, but it does it in a way that keeps everything fun and manageable. You won’t get that dead pedal feel anymore, and the factory turbo-brake still works just like it should. It’s a legal, emissions-intact upgrade that brings real-world driving joy back into your truck. If you miss how your old built diesel felt or just want your truck to pull harder in everyday use, this tune delivers.

Built With Smart Power And Emissions In Mind

This custom Street Tune is built with over 100 calibration changes designed to improve driveability, throttle feel, and torque delivery without overloading your emissions system. It’s fully 50 state legal, so there’s no need to remove or modify emissions equipment, and it retains key factory systems like the turbo-brake for safe, reliable performance. The tune controls soot output through air-fuel ratio management and maintains safe EGT levels for everyday use. It’s a clean and efficient solution for drivers who want more power but aren’t looking to overhaul their setup or risk reliability. Everything is delivered through EFI Live's AutoCal V3, which allows you to flash your truck quickly, log data, and even troubleshoot using the built-in scan tool. The throttle calibration has been refined to respond smoothly and predictably in every gear. This setup works best when paired with TCM tuning, especially if your truck has bigger tires or other performance mods. It’s a smart, safe power upgrade built by pros who know Duramax tuning inside and out.

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

Notes:

• This Street Tune is 50 State Legal with emissions equipment intact.
• SPADE tuning device and EFI Live AutoCal v3 are included.
• Not recommended for heavy towing without monitoring gauges closely.
• Designed for occasional towing under 8,000 lbs only.
• Too much abuse or excessive load can cause high EGTs.
• Includes over 100 calibration changes for improved performance.
• Works best when paired with recommended TCM (transmission) tuning.
• Not ideal for drivers looking to tow heavy loads often.
• Perfect for those who want better throttle response and power on the street.
• Factory turbo brake functionality is retained with this tune.
• Additional tune license is required if flashing multiple trucks.
• Product includes a warning for exposure to chemicals known in California to cause cancer.