Kerker Questions???

I purchased two Kerker Headers and they are very different. Both fit 78 A2A frame but get there in different ways.

The down pipe bends, collector lenght and style along with baffels are different. I guess they found improvment in header design over the years .... maybe?

What are the thoughts....Thanks.

Nobody wants to comment??

I was wondering about the Baffels....why one had the long neck.....it is missing a round spacer at the end which keeps it centered in the pipe...will have to replace it.

Anyone know what effects the different baffels lenghts would have.

The long neck one with the orange end is a "MEG SERIES BAFFEL" where the shorty looks to be a an plain jane orignal baffel?

I wonder if one of them is what I think they called kr series?

"KR" = Kerker Racing ?

longer = quieter if everything else is the same (baffle material o.d., holes,exit hole size).
If I remember correct the kr series had a larger baffle exit hole with short mesh .