Defender1

I did the exact same thing also. I went from a Sierra Denali extended bed to a Yukon XL and never looked back. As a matter of fact, my back has thanked me for it ever since. My Yukon XL is the most comfortable seating and riding vehicle I've ever had. Not sure why I even tried the pickup in the first place. I can fit every thing in the XL that I could in the truck without a problem.

Has anyone had any computer issues with the 63-3109 K&N Kit. I installed one on my 2019 Sierra Denali 6.2 last night (with disconnected battery), took it for a test drive with no problems. Sounded great, all seemed good and ran it for about 20 miles, averaging 55 MPH. This morning, I ran about a mile down the road, about a mile at about 35 MPH, to a garage to wash it. I washed it, pulled it out and parked it. 1/2 hour later, I went to start it, and it just turned over. I tried 3X, but no luck. I disconnected the battery for 20 minutes, and that reset the computer and I got it started. Nothing in the instructions about getting it tuned, or retuned or anything. I bought it for the increased HP and hopefully increased mileage. I tow a motorcycle trailer, and I'm hoping this will help. Any thoughts?