Gen 3 LS Mail-In ECM Programming

Mail-in flashing service for GM Gen 3 LS Engine Control Modules (P01 & P59, 1999-2007).

• Turnaround: 24-hour turnaround once your ECM arrives.

• Shipping: Return shipping is included in the service.

• Core Services:

  • Electric Fan Setup

  • VATS (Vehicle Anti-Theft System) deletes

  • Engine and transmission swap configurations

  • Diagnostic code deletes (Rear O2, EGR, theft deterrent, etc)

  • DBW to DBC Swap (Or vise versa. DBW to DBC can only be done if the ECM has the supported DBC driver, please see “DBC” on the ecm info page for more insight on this topic)

• Base Tunes:

  • Base tunes are available strictly for cam swaps (gets the vehicle idling and driving for final dyno or road tuning. Revision will be needed).

  • No boosted applications supported.

Gen 3 LS ECM Recovery (P01 & P59, 1999–2007)

If an ECM is dead or bricked, don't rush to buy a replacement—it can often be recovered.

• Important Note on Data: Recovery clears the current calibration, meaning existing custom tunes will be lost. A stock calibration for the vehicle will be loaded.

• No-Risk Policy: In rare cases where an ECM is too damaged for practical recovery, a full refund for the service is issued, with only return shipping charged.