I posted this on main forum and someone said to try here. i know this has been gone over a hundred times but somewhere on here i saw that pez said i could put 4ohm speakers on my 05 ultra and be fine. jus wanted to make sure i got this right.

 

you/Pez are correct. 06 is when HD went to 2ohm speakers. prior to that was 4 ohm speakers.

 

Mine has stock 8 ohms in it.

 

prior to 02 (i think), they were 8 ohms

 

My 04 is 8ohm.