There is no official way to do it. I actually modified the seat back. You can unzip the fabric and look inside. Though note that any mods you do to the seat are at your own risk.

 

Well I finally got some Si seats...



Problem SOLVED!!!

Drove the Fit for the last time today. I think the only thing I'll miss is the 87 octane. Turns out I didn't need as much cargo space as I anticipated.

 

Nice Si. I almost bought one of those when they first came out. Just couldn't stand the two-tier dash, plus the $5k difference with a decrease in utility, and putting in that $1.20 worth more in gas at every fill up (not sure why it pisses me off to put premium in vs. reg. Guess I'm that cheap), it was a no-brainer for me to go with the Fit.

Seats in the Fit don't bother me at all. But I'm used to riding on a 8" hard saddle for hours on end, so my tolerance level is quite different.

 

To bring this up again. I know what I bought but I did not think on my two hour commute my right leg would go numb. I am constantly playing around with the seat to try and find the right position. It is a 5spd so I cant be to crazy far away or else I cant touch the pedals as I am 5'8". I have seriously considered selling it but it is to much of a loss for me to accept that. So I have done tons of research and read through almost every seat thread here to see what you lovers of the fit have done. I do not want clazzio seat covers as I am not looking for seat covers. Just trying to see what can be done as I commute far for work and cant have my leg going numb.

 

You must have missed all the threads on "seat -covers"
Lots of posts mentioning changes, I used the one suggesting to lift front of rail with washers under, did it with a couple of .5 inch nuts and a new longer bolt to hold the track down.
Believe it or not I also found adding a spring to the gas pedal relieves the strain on another thread, and it works. It allows you to rest foot on pedal without having to hold it off as to control speed.
Foam added under seat covers could be solved by just adding a pillow.

 

Take out the old seats and put lawn chairs instead