GM Service Number 12200411 ECM (USED)

Description

This ECM is a used, tested and reconditioned factory GM computer. GM Service Number 12200411. Each ECM has been tested and painted and comes with a one-year warranty. Each ECM is flash programmed to eliminate check engine lights associated with an engine swap. Painless will also program in your tire diameter and gear ratio. It will arrive ready to run on any stock engine. You must register on the Painless Performance web site at www.painlessperformance.com and then click on the ECM FLASH button in the MEMBERS section on the left hand column on the home page after you have registered. Enter the required information on the ECM Flash form. Painless will then flash your ECM and ship it directly to you.