12200411 ECM with 2002 Gen 3 GM Truck Tune & VATS Removed. This ECM has the Vehicle Anti-Theft System removed and is calibrated for the following specs: 6.0L / 4L80e / 4.10 Gear Ratio / 29.62" Rear Tire Diameter. All factory emissions items will still be activated. You will have check engine lights until further tuning is completed. This tune is designed to allow you to start your vehicle and allow you to get it to a local tuner for further work to be completed. We do not offer this service.
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