You could have said that better, austingsx. A lot better. Please try to be more courteous and helpful, and you will do us all a favor. Thank you!
There is a good reason for there being two. I suspect one is Federal emissions and the other is California emissions. I am unsure though since I am not a VX guy.
Here is a older thread that talked about O2s and mentioned the 24300 & LZA09E1 -
http://ecomodder.com/forum/showthrea...sor-21933.html