Cool info! Thanks, Daytona73! The ANSA system looks the best. I wonder how robust it is, ANSA exhausts for the 330GTC rust through in a millisecond.
Additional expense but you can have the the ANSA system ceramic coated (in black). Will look authentic but should last forever - no rust problems. I personally prefer the the 512 2 by twin pipe exit but it is nice to see some considering putting an original style exhaust system on a 365. Best wishes