I have two FEI intake manifolds and need to know what the numbers mean and which I should use????
RF-F8ZE-9K481-BA
RF-F3ZE-9425-CB
AND
RF-E6FE-3K461-D3A
RF-E8ZE-9425-E4A
The second group of numbers is one that has supposedly been polished?????? How do I tell?????
ANY HELP GREATLY APPRECIATED!!!!!!!!!!!!!