Factory ECM/TCM are in place for functions such as, remote start, BCM comm, starter, PRDL, etc to work.
The Holley system is running dbw, engine and trans management; also integrated into the factory modules so all gauges work.
Pretty badass setup, not sure anyone else is doing this kind of stuff. Sure holley, lots of ppl do it, but to get ac, cruise, etc working, damn that was a chore.
From previous posts and knowledge content of your posts, I know a few of you guys can relate.
duckdynasty lmao.
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