Hey guys I just picked up a 1 piece aluminum set of what I believe to be factory louvers. Where on the louvers if any would be the identifying numbers or codes to tell me if it is indeed from the factory. Thanks for the help.

 

OEM were plastic. and aftermarket were sometimes aluminum. IMHO the aluminum ones are superior. as far as I can tell , there are no numbers ect that identify them as to what mfgr made them . and theres this. finding the louvers is one thing. finding the mounting hardware is quite another. some of us have had to make our own. I will also add this, since I added louvers to my 86 IROC , the inside temps have been quite a lot less . when parked in the sun. good luck. and good choice.

 

Thanks for the info. Brother