I had a shop do my swap and they transferred my LS1 accessories over to the LS3.
2002 Arctic White SS, #4675, M6, LS3
LS7 Clutch, Kooks headers, Corsa Cat-back, !CAGS, !AIR, B&M Ripper, S60 w/ 3.73s.
A modded V8 when started "sounds as if you stepped on some large animal in a dark cave. It awakens agitated".