Street Tune Only for EFI Live Spade

Features:

• Gain up to 110 RWHP and 198 ft-lbs
• Improves daily driveability and acceleration
• No more dead pedal feel
• Street-friendly performance with emissions intact
• 49 State Legal tuning solution
• Smooth power curve for consistent performance
• Throttle pedal responds instantly to input
• Retains factory turbo-braking feature
• Fully customized with 100+ calibration changes
• Requires EFI Live AutoCal v3 hardware
• More power and less soot than box tuners
• Ideal for highway and weekend diesel drivers

Turn Your Daily Drive Into Something You Look Forward To

If your 2014 Duramax feels like it’s holding back, the Street Tune is the easy upgrade that makes a real difference without overdoing it. It’s designed for the truck owner who hits the highway regularly and wants a little more punch in the pedal, without sacrificing smoothness or reliability. You’ll get up to 110 rear-wheel horsepower and 198 ft-lbs of torque, which gives your truck a much livelier feel right off the line. The throttle becomes more responsive, the acceleration feels faster, and the dead pedal sensation disappears completely. Even with the boost in power, the emissions systems stay intact, so you don’t have to worry about compliance in 49 states. The best part? It still drives like a truck should, with the added benefit of more usable power in all the right places. If you’ve been craving a tune that feels natural yet strong, this one nails the balance.

Clean Legal Power With Custom Calibration That Delivers

The Street Tune isn’t just a mild reflash, it’s a fully customized calibration built from the ground up by DuramaxTuner.com, featuring over 100 changes from stock. This tune provides measurable performance gains while keeping your emissions systems untouched and fully functional. With a gain of +110 RWHP and +198 ft-lbs of torque, it strikes the sweet spot between everyday drivability and noticeable performance. You’ll retain the factory turbo braking feature, and your pedal response will match your input without hesitation. SMART EGT control and air-fuel ratio limits are built in to maintain safety and reduce soot production, giving you cleaner, more efficient combustion. It’s compatible with EFI Live SPADE AutoCal V3 hardware, offering full scan tool and tuning capabilities. This is a technical upgrade with real-world results, perfect for drivers who want proven gains without crossing into extreme territory.

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

Notes:

• This tune is 49-state legal and emissions intact.
• EFI Live SPADE AutoCal V3 hardware is required.
• Designed for trucks that have not had major performance modifications.
• Not intended for heavy towing without monitoring EGT and other critical gauges.
• Street Tune offers the most power you can add while maintaining OEM reliability.
• This is not a good option if you regularly tow more than 8,000 lbs.
• Switch on the Fly tuning is recommended for mixed-use and towing needs.
• SPADE device includes scan tool and troubleshooting capabilities.
• Excessive abuse or misuse could lead to high temps and mechanical issues.
• DuramaxTuner.com provides world-class customer support with real technicians.
• TCM tuning is highly recommended for optimal shifting and drivability.
• Additional license required if using existing SPADE hardware from another truck.