I wish you could without muting the car sound. I would appreciate and have a good laugh with a censor. Seems like every race I go to, people are cussing like crazy. Just have an automatic bleeper that has very good word recognition to reduce the harm of profanity, in a reasonable and hilarious concept.
I don't have a headset but the voice chat comes over my speakers WAY louder than they should be. Now way to turn them off either - at least that I've found. Just have to turn the volume down on the whole race so I can't hear my car at all.
I especially love the guys who use the voice-changer to make themselves sound like an infant, and then they scream through the thing for the whole race. It's just so hilarious