Hello, My name is Stephen Taylor. I have a 2012 Silverado crew cab 4x4, 4.8l. I hope to find some helpful ideas for my truck. I have owned a few GM trucks from my 1988 two wheel drive that I drove to Alaska and back. I had a 2000 Silverado Z71 and a 2002 GMC Sierra. This is the first one with the 4.8l. I am looking to get some advise on how to add more power to the little V8. I miss my 350 and 5.3. Cost is what got me into this one. I have looked at programmers and Intake kits, plus exhausts. Not sure what to use as I usually didn't have to worry about it. I do tow a 3200lb travel trailer with it. So my main reason for more power is the trailering and to help with gas mileage. Any help would be great.