I did not realize there was that much of a difference between the SC and the EX. Just out of curiosity, what is it you do not like about the seats? The seats in my 04 are like new because I have covers on them (fronts) and they have always been comfortable. There must be a size / mounting difference between the 04 and 07 seats too.
07+ have the seat-integrated seatbelt. 06- have the seatbelt on the B pillar. I don't like the pattern on the SC fabric. I want flat black or grey. Am willing to trade seats and 100$ for black EX or LX seats.