2019-2022 Silverado/Sierra 1500 5.3L (STAGE 1)

2019–2022 GM 1500 5.3L Stage 1 Performance Kit

Unlock the full potential of your 2019–2022 GM 1500 5.3L with our Stage 1 Performance Kit, designed to improve throttle response, drivability, and overall power while maintaining factory reliability. This package is the perfect first step for owners looking to wake up their truck without compromising daily usability or towing performance.

What’s Included:

inTune 3 GM E90 / T93 Unlock & Tune Kit

This kit includes the required ECM unlock and custom calibration to safely optimize your truck’s performance. Tuning adjusts key parameters such as throttle mapping, shift behavior, torque management, and fueling to deliver noticeable gains in responsiveness and drivability.

• ECM and TCM unlock included!
• Unlock and Tune, at home!
• Preloaded tunes for multiple octane levels
• No need to remove ECM or TCM!
• Supports Custom Tuning for ECM and TCM through our CMR sfotware!
• Support for 5.3L and 6.2L V8 applications with 6, 8 or 10 speed transmissions
• Disable Dynamic Fuel Management for full time V8 operation
• Throttle Boost setting for adjustable throttle feel
• Adjust speedometer for larger tires (26"-38")
• Calibrate speedometer for gear change (3.42-5.13)
• Remove speed limiter for increased top speed
• Adjust engine rev limiter for increased RPM range (+/- 400 RPM)
• Adjust engine idle speed in Park/Neutral and Drive
• New ‘Keep Auto Stop Start Setting’ allows you to disable the system using the button on the dash and it stays that way!
• New ‘Keep Drive Mode Setting’ allows you to select a drive mode and it will remember that mode next time you start the truck!
• CARB EO: PENDING

Cold Air Intake Option

Choose the intake that best fits your build:

• S&B Cold Air Intake – Known for high airflow and excellent filtration
  • CARB EO: PENDING
  • Up to +51.69% Air flow improvement
• aFe Cold Air Intake – Performance-focused design with proven power gains
  • CARB EO: PENDING
  • Gains up to +12 HP

Both options improve airflow over the restrictive factory intake, complementing the Stage 1 tune for consistent and reliable performance.

Optional West Bend Dyno Installation

For customers who want a turnkey solution, professional installation is available at West Bend Dyno. Installation includes ECM unlock, tuning setup, intake installation, and final verification so your truck leaves ready to drive.

Performance Benefits

• Improved throttle response
• Smoother and more responsive shifting
• Increased horsepower and torque over stock
• Optimized drivability for street and towing use
• Retains factory-like manners with enhanced performance

Perfect For

• Daily-driven GM 1500 trucks
• Light towing and hauling
• Owners looking for a safe, reliable power increase
• Customers planning future performance upgrades

Fitment

• 2019–2022 GM 1500
• 5.3L V8
• Equipped with GM E90 or T93 ECM

Important Notes

• ECM unlock is required for tuning and is included in this kit
• Custom tuning is designed for Stage 1 bolt-on performance
• Installation option is available for in-house service only