Ansa makes one and these are the part numbers:
Headers: 1-3 FE2321
Muffler: Lower FE2327
Port Gaskets: 103595
Donut Gaskets: 110313
I replaced the complete exhaust headers and mufflers no my 78BB in 1995 I order all the items from FAF
If it is a stock exhaust the Ansi will sound better but not like a Tubi. All the Tubi i've heard were very Hi-pitch like F1, not good for the neighbors. The lower back-pressure may give you some carburetor tuning problems.
Borla makes performance exhaust for just about any car. However if I remember correctly someone told me they stopped making them for Ferrari. I know someone that sells Borla and will ask them to look it up.
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