DOES NOT WORK with the stock or "Chrome" ECU unless you have the ability to rewrite the ECU firmware.
The stock 3 tooth crank trigger wheel on the 6G72 engines is prone to causing irractic crank signals to the ECU, which can cause timing drift, and is not supported by some modern ECUs. Improve your ignition timing accuracy or enable yourself to run "unsupported" ECUs like the AEM Infinity.
Works with the following ECUs: