Hello all, Does anyone know of a completely silent, non restrictive muffler out there? Everywhere I look, all I see are mufflers designed to change the sound and increase performance, but nothing to silence the sound and increase performance. By silent, I mean no louder than a laptop fan on full. If not, are there any efforts to create something like this? Also, I keep hearing that making a muffler system is something of an art. Is there anyone who makes these that doesn't subscribe to that? Thanks.