Switch on the Fly ECM / TCM Tune Incl. UNLOCK YOUR ECM & Credits L5P (2020-2023)

$2,973.92

Switch on the Fly ECM/TCM Tune – Maximum Performance & Control for Your L5P (2020-2023)
Unlock the full potential of your 2020-2023 Chevy Silverado or GMC Sierra with our Switch on the Fly ECM/TCM Tune. Seamlessly switch between five emissions-intact custom tunes while driving—no need for bulky reflash devices. This tuning solution provides the perfect balance of power, reliability, and flexibility for towing, daily driving, and maximum performance.

– Effortless Tune Switching: Instantly switch between five custom tunes without needing to reflash your ECM.
– Optimized Performance: Choose the power level that best suits your driving needs, from light towing to high-performance driving.
– Seamless Driving Experience: Maintain reliability and emissions compliance while enhancing your truck’s capabilities.
– Complete Tuning Package: Includes ECM Tune, ECM Unlock Service, HP Tuners Hardware, and Credits for a hassle-free installation.
– Proven Reliability: Experience the cleanest, most dependable custom tuning solutions available.

Note: This tuning solution is designed for emissions-compliant use. Ensure compliance with local regulations before installation.

$2,973.92

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Switch-On-The-Fly ECM/TCM Tune – Includes ECM Unlock & Credits for L5P (2020-2023)

Why Choose This Custom Tuning Solution?

Switch On-The-Fly (SOTF) Tuning – Instantly change power levels while driving, eliminating the need for re-flashing.
Emissions Intact – No removal of emissions equipment required.
10-Speed Allison Transmission Tuning Included – Enhances shift patterns and drivability.
Over 14 Years of Tuning Experience – More than 100 calibration adjustments applied for optimized performance.
No Wiring Modifications Needed – Avoid tampering with control units, fuel pumps, or turbo sensors.

Available Power Levels:

Sport Tune

Power Gains: +150 RWHP, +270 ft-lbs TQ
Total Output: 595 HP, 1180 ft-lbs TQ
Features: Fastest acceleration, firm shifting, no dead pedal.
Caution: Not suitable for towing; improper use may cause damage.

Street Tune

Power Gains: +100 RWHP, +180 ft-lbs TQ
Features: Smooth power delivery, quick acceleration, factory turbo braking retained.
Ideal for: Daily driving with OEM reliability and enhanced throttle response.

Light Tow

Power Gains: +80 RWHP, +144 ft-lbs TQ
Towing Capacity: Suitable for loads under 8,000 lbs.
Features: Smart EGT control, air-fuel ratio limits to reduce soot.
Drivability: Improved power delivery and better low-speed trailer maneuvering.

Heavy Tow

Power Gains: +40 RWHP, +72 ft-lbs TQ
Towing Capacity: Supports loads up to GVW.
Features: Optimized for towing without excessive EGTs, complete factory turbo brake functionality.
Drivability: Enhanced throttle response for smoother trailer handling.

Optimized Stock

Purpose: Maintains stock performance with minor refinements.
Use Case: Best for troubleshooting, lending the vehicle, or maintaining factory performance.

Included Services & Hardware

ECM Unlock Service

Remove and mail your factory ECM along with proof of purchase.
Motorsports Arsenal will unlock and return it ready for tuning.
Quick turnaround (typically within two business days).

HP Tuners MPVI3 Hardware

Features: Bluetooth®-enabled, proprietary expansion port, mobile support.
Includes: VCM Editor & Scanner for diagnostics, logging, and tuning.
Functionality: Real-time OBDII data monitoring, DTC clearing, and control functions.

HP Tuners Universal Credits

8 credits required for ECM tuning, included in the package.

Transmission Tuning – 10-Speed Allison (2020-2023 L5P Duramax)

Optimized Shifting – Works with ECM tuning for smoother driving and improved performance.
Torque Converter Lock-Up Strategy – Delivers power efficiently to the ground.
Increased Line Pressure – Improves clutch holding capacity.
Prevents Short-Shifting – Keeps the engine in the optimal rev range.

Ideal for Trucks with: – Custom ECM Tuning – Larger Tires (35”+) – Modified Turbo(s) – Built Transmissions – Performance Upgrades

Modified TCM (Transmission Control Module) Option

Pre-programmed TCM shipped directly for easy installation.
Flash custom transmission tuning using RTD hardware and HP Tuners credits.
Return your factory TCM for a $700 refund if confirmed in working order.

Important Notice

California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer. For details, visit www.P65warnings.ca.gov.

Upgrade your 2020-2023 L5P Duramax with customized ECM and TCM tuning for enhanced power, efficiency, and drivability—all while keeping emissions intact.