i had a friend of my modify the brackets. we took the accord mounts and weld them to the SI rails. they will not fit w/o modding the mounting brackets.
im the guy who is selling the seats
http://www.6thgenaccord.com/forums/showthread.php?t=3646
i got a great deal on them, so it wasnt that bad. i was going to weight the wheels/tires on had on my car before and do a weight comparison between the two. but i was so excited when i got them, i forgot :D