72 exhaust tips serial numbers?i
 

How do I know if these are correct

Part number GM 495832 FT is 1974 exhaust extensions (tips). Let's see the whole thing to see if they're original or GM replacements.

HERE is a thread comparing 70 through 74 tips;
I had to be made aware that a set I had was a 1974 set - and those were pulled off of a seemingly original 73 Formula 455!