20230604_132731.jpg
I have no clue. I see no numbers anywhere on either of these sets, they look identical to me. set on the left is a set from a 4.3 and set on the right is a set from a 454. is it the ever so slight color change on the lower filters or something? because those can be lost.
but yeah, I keep them in bags identified other than for this pic...but I'm just worried for when I start swapping them out in the housings while testing tunes and they get otherwise mixed up somehow...
also, I know there are supposed to be color coded paint markings on the top middle but as you can see, its gone on these.
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