I currently have a 4 into 2 and do no like the sound or looks of it. While I would like to install the original system, there just are not any to be had. So, I am looking for a quiet CB500/550 system but need a little help from you guys as to what and where to buy. I have not seen great reviews on the MAC system. Thinking of a good quality 4 into 1 with a Cone Engineering quiet core muffler. Anybody have this and what do you think? Would like to know what's good and do you have any pictures. Anybody have one in the Detroit area that I could look at?