Drive By Wire change in GMT400

Hi everyone.

I’d like to change my current tune/setup to be DBW.
What’s involved in this?
Currently I’m trying to ‘re-learn’ alot of things as it’s been quite a while since I’ve done any tuning. Happy to hear any advice from anyone.
Currently running an 0411 COS3 speed density (no MAF or O2’s installed) in a 98 K1500 GMT400Suburban with Whipple SC, 80e.
I’m planning some fairly major changes…mainly custom air/water intercooler setup and want DBW for ease of ‘mounting the TB anywhere I decide’.