Below is a description for the maps in this directory: For each model, there are three different combinations: 1) OEM-87 octane. This map is very similar to what was loaded when your CDI left our facility. Map #1 is loaded with a clone of the OEM Ignitor, all limiters enabled. Map #2 is optimized for 87 octane, with all limiters disabled. 2) OEM-91 octane. Map #1 is loaded with a clone of the OEM Ignitor, all limiters enabled. Map #2 is optimized for 91 octane, with all limiters disabled. 3) 87-91 octane. Map #1 is optimized for 87 octane, with all limiters disabled. Map #2 is optimized for 91 octane, with all limiters disabled. Click on the desired map(s), and save to a location on your computer. Open the CopperheadEFI 4.x.x Application, and go to the "FILE" menu, and select "OPEN". Browse for the desired file. Then select "Memory Pod" or "Live Tuner" from the header" and "Write Map" to save the file to the interface.