2015 Silverado 5.3, flex fuel, tune

This truck is running a Airad intake air tube (stock airbox), our Flex Fuel Conversion Package along with a full tune!


  • HP gains on 91 Oct Tune: 30.6
  • TQ gains on 91 Oct Tune: 33.8
  • HP gains on E85 Tune: 57.7
  • TQ gains on E85 Tune: 70.7

I have to say, my truck is a whole new beast, completely amazing. Shifts so much better, new power, etc. This is my 3rd vehicle I have had him tune, all have been excellent.