Attempting to identify the rear gear ratio and of course when I scan the QR code it only provides 20 or so codes, none of which are a GT* or GU* code.
If anyone is able, can you run VIN 1GCVKSEC0JZ255209?
Any help is greatly appreciated!
Ive got the MBRP exhaust on my truck and its the perfect balance of a deep mellow tone without being too loud. I liked my aFe Mach Force XP I had on my 2014 Sierra with the 5.3 but the MBRP sounds a bit better on the 6.2.