Gauges, Electronics and Wiring.
2001 GMC Sierra 2500HD CCLB, stock tire size, EFI Live, 160K miles.
I'm wanting to recal my speedo and wondering if there is a cheap tuner/programmer or something out there that will do so (under $300?). I'm not looking for a tune or anything as I already have EFI Live. The speedo works fine and...