Never replaced mine, but I have had it out before... It's a pretty simple module, it's actually the gateway module.
I would assume all that's needed...
I just finished installing a Texas speed stage 2 cam and dod delete on my 2016 Chevy Silverado 5.3. I used a hp tuner to disable the dod and vvt maps...
While I was changing my pump last week, I realized how far forward it is in the 31 gallon tank in my 09 Escalade ESV, so the thought of twin in tank...