re: AFM/DOD Delete - 2014-2019 GM SUVs (*UPDATE - OB post*)

******UPDATE*******

I purchased a 2018 Yukon Denali with 96k miles on it. In great shape and has 420HP with a 10 speed auto transmission - it is FAST!

I went back and forth on whether to do a stock cam profile or a stage 1 cam. I figure if I'm swapping the cam I might as well try and get a power bump. After calling Brian Tooley Racing, they suggested the stock cam profile for the AFM/DOD delete if I was not planning on modifying anything else. They said a set of headers with a stage 1 or 2 cam would give some extra gains but this is a family vehicle so the wife doesn't wanna go too hardcore on it . They did tell me the new standard cam can handle a slightly more aggressive tune since it uses non-DOD lifters. I might get a slight power bump but nothing overly dramatic.

I ended up with this kit from AMS Racing (in Bossier City) LINK. I ordered it with the Chevrolet performance lifters as they suggested those for the best reliability compared to the other aftermarket ones. I also can retain my factory valve springs since I'm not stepping up to a more aggressive cam.



I debated doing just a standard tuner to turn off V4 but talking to the tech at BTR, he said it's simply a matter of time when one of those DOD lifters will fail and it can happen pretty much at any time. So hopefully I can get plenty of years out of this vehicle with simpler engine

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I also got a Diablo tuner to stop the v8-v4 swap, read codes, and up my shift firmness. Supposedly the 6l80 stock programming was hard on torque converters and that helps. I had the programmer on from 100k forward.

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I got 175k miles out of my 2010 Yukon Denali with this setup but in hindsight probably should have done the full delete. Then again I didn't have a failure so maybe I'm crazy .