Hey guys, I have a 2008 GMC Sierra 2WD Crew Cab SLE2 Texas Edition 5.3l LMG 5.3l Flex Fuel truck. I have read on other forums that people with gas engines tend to run HP Tuners more than EFI Live. I'd love to have a Diesel and my next truck will be the exact same truck that I have now, but a 4wd Diesel.
So is this true? Is HP Tuners better for gas engines than EFI Live? If so, is it because of the price or something else?