GM Duramax LZ0 3.0L – Power Tune (2022.5-2025)
Type: Tuners
The Power Tune Package for the LZ0 Duramax is engineered to eliminate factory limitations and deliver crisp throttle response, smoother torque delivery, recalibrated transmission shifts, and measurable gains in fuel efficiency. Whether towing, daily driving, or running heavy loads, this tune provides the refinement and reliability your truck deserves.
Vehicle Compatibility
- 2022.5–2025 Chevrolet Silverado 3.0L Duramax LZ0
- 2022.5–2025 GMC Sierra 3.0L Duramax LZ0
- 2022.5–2025 Chevrolet Suburban 3.0L Duramax LZ0
Specifications
| Requirement | Details |
|---|---|
| Operating System | Windows 10 or newer |
| Software | HP Tuners VCM Suite Beta (latest) |
| Connection | Internet + OBD2 Device |
| ECM Unlock | Required |
| HP Tuning Credits | 6 ECM Credits / 4 TCM Credits |
Note: ECM unlock and OBD2 device are not included and must be purchased separately.
Key Features
- Sharper Throttle Response: Eliminates dead pedal delay for instant driver input.
- Optimized Torque Curve: Earlier torque across all power levels for smoother driving and towing.
- Transmission Recalibration: Improved shift timing, earlier converter lockup, reduced lag.
- Fuel Economy Gains: Intelligent calibration of injection events, timing, and VGT for more MPG.
- Safe & Reliable: OEM safety strategies recalibrated to protect drivetrain longevity.
- Custom Gear/Tire Support: Adjustments tailored to larger tires or gear changes.
- Exhaust Brake Memory: Maximized braking power with memory functions retained.
- Auto Start/Stop Disabled: More predictable and controlled driving experience.
Tune Levels
| Tune Type | Power Gain | Best Use Case |
|---|---|---|
| Stock Optimized | +0 HP | Refined stock feel with smoother driving |
| Heavy Tow | +12 HP | Perfect for heavy hauling with lower strain |
| Light Tow | +24 HP | Balanced power for moderate loads |
| Sport | +36 HP | Crisp response for spirited daily driving |
| Performance | +48 HP | Aggressive daily performance with reliability |
| Race | +60 HP | Maximum power for stock turbo & fuel system |
| SOTF (Switch-on-the-Fly) | 0–60 HP | Switch seamlessly between levels |
Benefits
- Stronger towing capability with smoother torque delivery
- Faster throttle response and improved drivability
- Reduced transmission temperatures with earlier lockup
- More efficient downshifts and better acceleration
- Reliable power gains while keeping OEM safety intact
Important Notes:
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Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
