Look for tuner for 2011 Silverado

Hello,
I have a 2011 Silverado ext cab 4x4 with the 5.3 Vortec engine and 6 speed auto. I have been using the Range device to shut off the AFM, but since my warranty is out of date, I'm looking at tuners. I'm not looking to ad horsepower or anything performance related, I just want to turn off the AFM and maybe change the firmness of the shifting. What would be a good turner for the money to look at? The reason I no longer want to use the Range device is at times when I start the truck I get warning lights on the dash that will only disappear after I unplug the Range and restart the truck.

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Originally Posted by salvatorechubb

Hello,
I have a 2011 Silverado ext cab 4x4 with the 5.3 Vortec engine and 6 speed auto. I have been using the Range device to shut off the AFM, but since my warranty is out of date, I'm looking at tuners. I'm not looking to ad horsepower or anything performance related, I just want to turn off the AFM and maybe change the firmness of the shifting. What would be a good turner for the money to look at? The reason I no longer want to use the Range device is at times when I start the truck I get warning lights on the dash that will only disappear after I unplug the Range and restart the truck.

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Your wanting a simple hand held tuner?