I have the CVO 4" cat mufflers that come with the SE 110" big bore kit on my 96" stage one 07 Street Glide. The CVO mufflers made a big improvement to my low and mid range torque over the stock mufflers and are just slightly louder than the stock mufflers.

Are these 4" CVO mufflers basically the same mufflers as the 64985-07 SE mufflers? They do not have the SE signature on the outside of the muffler like the 64985-07 mufflers do. The best I can figure out by looking at the HD catalog, is the HD touring mufflers, part #80463-06, are 3" mufflers, as the SE #64985-07 mufflers take the 4" end caps and the 80463-06 touring mufflers take the other end caps listed in the HD catalog with no OD muffler size listed.

I do not think my CVO mufflers are the same as the touring mufflers listed in the HD catalog, even though they look the same as the touring mufflers. Can anyone help?