how does this sound for an 06 s197

Actually, if you're looking for a good upgrade to your system, check out the CDC and stangnet GT500. They used Rockford Fosgate 8" P2's for the doors, which I can only imagine sounds amazing. Plus, Rockford sells grills that look really close to the factory ones so nobody will know what you have so your stuff won't get stolen. And the 06's have 6x8's in the doors and rear deck, not 6x9's. Good luck with your upgrade!
 
Thanks I wound up getting infinity kappas for the doors, left the stock door woofs (am looking at the shelby / kicker replacements now), and got an alpine HU