I think everyone would still use standard mufflers, 'cause those things are loud.

Nelson, Jett, Rolls Royce, et. al. can charge what ever the heck they like.... indeed if they're not interested in increasing supply then raising the price until demand meets their capacity is perfectly logical.

Dar, if you can flood the market with a $25 version, I'll buy two. When you do that, can you make it about the same size as the Ultrathrust/Jett but add a bit more noise supression. Of course, some performance loss would be okay to accomplish that.