From my little knowledge of that build its a remote vgt 2.5 charger that's going in his truck. There's a lot more mind blowing goodies too but im not going to be the one to get into details about it.
I had local shops do mine. They're is a company that does the hi heat stuff for the manifolds and up pipes, we have had good luck with it holding up and not coming off.
Just got it back from the Machine shop last week, still thinking of what color to go with
03 2500hd lb7, ccsb, robs trans safe tunes, Airdog 165, profab horn, 4in straight piped, ppe gauges, cognito control arms and braces, banks big head waste gate, batmowheel in the stock IHI. Built trans and engine coming soon