Description
GM Global A E90 ECM Unlock & Tuning Service – Silverado / Sierra
Unlock Full HP Tuners Access for Your 2019-2022 Chevy Silverado or GMC Sierra – Disable DFM & More.
Mail in your ECM or drop off in Atlanta for a one-time unlock + optional custom tuning. Eliminate Dynamic Fuel Management annoyances, remove speed limits, and unlock real performance gains.
Supported Vehicles & ECM
- 2019–2022 Chevrolet Silverado 1500 & GMC Sierra 1500 (5.3L L84 & 6.2L L87 engines)
- GM Global A E90 ECM (pre-facelift / non-Global B models)
Requirements
- Remove and send your ECM (or bring to our Atlanta shop)
- Requires HP Tuners MPVI interface for post-unlock flashing
- Local removal/reinstall labor: $150
How mail-order service works
- Purchase this service.
- Complete the service request form using your order number.
- Remove and securely package your PCM/ECM or module(s).
- Send only the bare PCM/ECM or module(s). Before shipping, remove all plastic or metal brackets, mounting pieces, screws, wiring-harness gaskets, and other accessories. Extra pieces are not part of this service and may not be returned, so please keep them with the vehicle. PCM Tuners is responsible only for the module(s) sent for service.
- We strongly recommend that you use the white 9" x 3" x 12" Pen+Gear brand boxes available at Walmart. They are strong, made in the USA, and cost about $1. Most GM ECM and PCM modules fit in these perfectly. Just add a bit of paper on the ends to prevent the module from sliding in the box during transit.
- Ship it toPCM Tuners367 N Clarendon Ave, Unit 7[YOUR ORDER NUMBER] – Please don’t forget this. It really helps speed up order processing.Scottdale, GA 30079
- We complete the service and return the controller(s) with tracking.
Turnaround Time
- 1–3 business days after receipt
- Tracked USPS return shipping (included)
- Rush options available – contact us
Pricing
| Service | Price |
|---|---|
| E90 ECM Unlock – Includes the cost of the 6 HP Tuners Credits (value of $300) | $450 |
| Edit Basic Settings- Add DFM Disable, Speed Governor removal, DTC Disable | Free |
| Premium Tune – Everything in basic tuning, plus we add power, torque, and throttle response | +$150 |
| ECM Removal + Reinstall (Atlanta shop) | +$150 |
What This Unlock Enables
- Full read/write with HP Tuners VCM Suite
- Custom tunes for power, drivability, towing
- DFM (Dynamic Fuel Management) disable for constant V8 power
- Speed limiter removal, throttle optimization, and more
Ready to transform your truck? Order now and feel the difference – smoother power, no DFM hesitation!
CHOOSE YOUR SERVICE LEVEL
1) ECU Unlock
- ECM unlock for HP Tuners access
2) Basic Tune Options – Add These Custom Adjustments
Build on the unlock with targeted edits for better daily driving and performance:
- DFM/DFM Disable – Keeps full V8 mode always active for smoother acceleration and reduced wear
- Speed Governor Removal – Raise or eliminate top speed limiter
- Other Basic Settings – Adjust rev limiter, tire size calibration, DTC deletes, etc.
3) Premium Service, Full Performance Tune – Max Power & Drivability
Our premium custom tune optimizes everything for real-world gains on stock hardware (premium 91/93 octane recommended):
- Includes all Enhanced Tune Options above
- Optimized ignition timing, air/fuel ratios, torque management, power enrichment, better throttle response
- Estimated gains (typical wheel numbers, stock setup):
- 5.3L – +22 HP / +25 TQ
- 6.2L – +25 HP / +28 TQ
- Gains vary by setup/conditions and are estimates from world results from similar vehicles
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Fast • Reliable • Atlanta-Based • Thousands of Happy Customers
