50 State Legal FIVE Tune Pack Only for EZ Lynk Auto Agent 2.0

Features:

• Includes five custom tuning power levels
• Emissions equipment remains fully intact
• 50 State Legal with CARB EO# D-845
• Gain up to 135 RWHP and 243 ft-lbs
• EZ Lynk AutoAgent 2.0 required
• Quickest acceleration with firm shifting
• Improved throttle response and drivability
• Heavy and light tow tunes included
• SMART EGT control manages exhaust temps
• Fully customized with 100+ calibration changes
• Great for both daily driving and towing
• Switch between tunes for any situation

Five Custom Tunes That Match Your Drive Style

If you’ve ever wished your Duramax could adapt to your day the way you do, this Five Tune Pack is exactly what your 2012 Silverado or Sierra 2500HD or 3500HD needs. Whether you’re heading out with a trailer, just cruising empty, or want to feel that seat-pinning acceleration, these custom tunes give you real flexibility without sacrificing reliability. The Sport Tune brings you the biggest punch with up to 135 RWHP and 243 ft-lbs of torque, while the Street Tune gives you quick throttle response and a smoother ride for everyday driving. When it’s time to tow, the Light and Heavy Tow tunes help you move weight confidently with cooler EGTs and better pedal feel, even in tight trailer situations. For peace of mind, the Optimized Stock Tune gives you a dependable option when someone else takes the keys or when you're just troubleshooting. All five are emissions intact and 50 state legal, which means you don’t have to worry about compliance or headaches down the road. And because these tunes are delivered via EZ Lynk, setup is simple and fast, with real-time data support and diagnostics right from your smartphone. It’s like getting five trucks in one, but without the extra payment.

Power Control And Diagnostics In One Smart System

This tuning package is backed by over 100 precise calibration changes from stock, carefully built to optimize power delivery, throttle response, and driveability across a wide range of applications. Every tune, from Sport to Optimized Stock, is designed to work seamlessly with your truck’s emissions system and maintain OE-level safety. SMART EGT control helps protect your engine by automatically managing exhaust gas temperatures, especially when towing or under heavy throttle. Air-fuel ratio limits are calibrated to reduce soot output without sacrificing usable power. With the EZ Lynk AutoAgent 2.0, tuning is plug-and-play through your smartphone, giving you full access to engine diagnostics, real-time data logging, and live support. Whether you’re running larger tires, a modified turbo, or just a heavy service rig, this setup ensures your engine and transmission stay within their proper operating range. TCM tuning is highly recommended to improve shift quality, prevent short-shifting, and maximize performance gains across all tunes. Together, this system delivers reliable, street-legal performance in a package that’s smart, safe, and built for the long haul.

Fitment: 2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• EZ Lynk AutoAgent 2.0 required unless already owned.
• Includes five custom power level tunes.
• All tunes are 50 State Legal and emissions intact.
• Sport and Street tunes not safe for towing.
• Tow tunes manage EGTs automatically for safety.
• Optimized Stock is great for troubleshooting or lending.
• Each tune has 100+ custom calibration changes.
• TCM tuning recommended for best shifting and performance.
• Monitor data and run diagnostics via smartphone.
• No emissions equipment needs to be removed.
• High-power tunes can damage truck if misused.