I have a 2009 4.3L v6 truck and I'm wondering who makes tuners for this vehicle? I have a volant Cold air intake system, along with a dual flowmaster exhuast, set of new plugs and an econoaid throttle body spacer. I want to be able to switch back to my stock tune because I am still under the warranty with this vehicle. Can anyone please help me?? And refer me to anyone? Comments and suggestions are HIGHLY welcomed please. Thank you in advance!