You can get a wams tune, but likely would have to be updated to smooth out the mods. He can only get it so close without having the car there.
There's also the Trifecta tune, cobalt guys love this. You do the flash yourself through a special cable in your obd port, then you can data log as you drive, send that to them and they'll will go through it, tweak it, and send a new file to flash with. you can buy or rent the cable.
It seems pretty cool. But according the their site they only support ls motors such as what's in the camaro and G8, and ecotech motors such as cobalts, g5s and Such. I don't see very much V6 support. I don't know if this is because they can't/won't do em or just haven't had requests.