SCT X4 tuner 2011 Sierra 6.2L
Noticeable HP & torque gains with 93 octane stock tune Increase MPG from 12.3mpg to 17.5mpg highway Would recommend to anyone Mods- Gibson shorty headers, Brisk USA LGS spark plugs, Granatelli wires, custom header back exhaust, Flowmaster super 10 muffler, K&N Blackhawk CAI, and SCT Tuner with custom tune Next on the wish list is a supercharger or pro charger Little pricey but worth the $$ Can't go wrong with SCT
Okay not great
Tuner only has 3 basic programs based on fuel octane, and none of them adjust for tire size or allow user to turn off "active fuel management". In the 2 weeks since install, the monitor has failed to turn on with the ignition several times. Overall, I'm disappointed with how little R&D went into writing this particular vehicle program.
Will it blend?
The down and dirty: Yep, got a nice 93 octane tune. The iPhone interface to do this is slick and I would not say slow But: After a few days the module you get that plugs into the OBD II data prt died. It flickers as if it will startup, then dies So: I am very pleased with the tune. The power increase is noticeable and the shift points aren't ramped up to obnoxious levels. i have not given cust supporter a chance to rectify.