I found the Wizaired CAI used from a local fellow. I don't know whether it will quell the argument or inflame it but I found this dyno chart quite some time ago as I was wondering what these cars put out stock. The car has nothing but a pair of TOG headers on them.
But Juanmiguel, I remember reading elsewhere on this site that it is not exactly worthless to drop to a 160* thermostat but you won't get the gains that you are expecting unless you tell the pcm to change the temperature at which it turns on the radiator fans. So I would say to avoid the thermostat until you get a tune from overkill or dhp with the lowered fan turn on temperature.