Originally Posted by RSVT170
I had the same issue. I put in some SVT seats which have lumbar adjustment and no more back pain. Also, try adjusting the height of your seat with the little crank underneath. Try sitting a hair higher. It's amazing what a difference it makes on long trips.
This would be your best bet. I had the same thing in my 06 S they are just cheap and they suck! I guess you get what you pay for!