I had the exact same thing happen to me with my Borla system. The issue was traced to one of the catalytic converters which was replaced and issue resolved. Dealer had no prob with replacing the cat.
Automotive tires degrade over time and have a "life span" Look for the letters D-O-T on the side of your tires followed by a series of up to 13 characters. For tires made since the year 2000, the tire date code is always the last four numbers in the series. The first two digits represent the...
You can purchase an AFM disabler that simply plugs into your obd port and it will deactivate the 8 to 4 cyl issue. Just Google the Range AFM DFM Disabler....
I def would like to do another group drive..... double whammo for me lately, some recurring health issues then catching up on stuff that needed to get done. Think Im back on track now... let me know if and when anyone is heading out.