CATALYST MUFFLERS

[41canine]

Hi. I hope someone can answer this for me. The dealer certainly can't!
I've got an '06 Road King with the catalyst mufflers. I want to go to the Screaming Eagle slip-on mufflers, but they show one set for '95-'05 (65259-00) and, for '06 only, they show another number (80463-06).
The aftermarket mufflers show one part number for '95-'06. However, on H-D's $700.00 Active Perf. System it fits '05-'07??? What's the difference? The '97-'05 SE are $40.00 cheaper. Is it something they can't remap for or what? ANY help will be appreciated. Thanks.

[opspecial]

are the catalyst mufflers only in certain states or all?