Picked my Boss up the other day and so far I've installed some stuff. None of what I have requires drilling or warranty voiding other than the seatbelt covers.
In regards to the cold air intake: I LOVE IT. I never drove the stock Boss but I had a 2017 Z71 6.2l Midnight Edition tricked out to hell and this engine performs way better, even with the 4/8 cylinder fuel economy stuff (I'll drop the Pulsar in around 500 miles). No engine lights or codes thrown. It idled rough for a hot minute but then evened out. The tech at the dealership said he loves the feel of the truck.
Had it for two days and today had time to crawl over under and everywhere inspecting quality and fit. As a retired Cummins Chem engineer I am picky. Really stoked about H.O. 2.7L L3B and the 420 ft lbs of tq is amazingly stable at low RPM. I am "older" disabled veteran and wear hearing aids but its so quiet all I could hear was rocks from our mountain roads flinging a bit off the duratracs. Trust me I turn those VA hearing aids up! LOL