Hey guys, I hoping theres an expert on these things to confirm my suspicion. I have a set of megaphone exhaust tips that I have good reason to believe are NOS, but without a PN on them its tough to say for sure. I did find a set pictured on Ebay where the tips had a tape ID tag on them that supports why I wouldn't find a stamped number.
Heres a few pics with details, perhaps one of you can confirm.