The other day I rode as a passenger in the rear seat and I noticed the marked difference in the seat cushion / padding thickness, firm suppleness, and the much greater comfort level. Man, what a difference. Both front seats just seem so sagged and so do not provide as much support. Are they always like that or ... here are the question:

How to replace the front seat cushion? What kind of form pads to buy and where? Any other sources?

Much thanks.

Lih-Yen