I'm in need of a new exhaust system as well, I've got an old Monza on now which is barley hanging on. I understand we can purchase ANSA exhausts again, (yes, I know they're expensive). Does anyone know how the ANSA system compares to the Monza in terms of sound volume & quality of build? BTW, I am running a header as well right now. Erik S. 1974 TR6