The 07 WRX limited leather seats are not very supportive and I have a long commute from the bay area to sac...

I looked into getting stock low position seat rails for better seating angle, but at $300 a piece, I would rather start somewhere else.

So I looked into aftermarket, but I would lose the side airbags, heating option (very nice btw) and possibly throw a cel.

07 STi limited seats seem one option... For those who have them, are they supportive enough for commuting?

Is there a way to modify the stock seat to provide more lumbar support?

Any other suggestions? Thanks