I have the MRT V2.0 and I love them and can't comment on the other exhausts listed. I listened to all the clips I could find also and I just come to the conclusion that the V2's were the ones and I have not regretted it yet. It is quiet enough cruising and sounds mean when I get on it. It has a low tone idling and doesn't sound raspy when I get on it. I have added Solo HFC's which added a slightly deeper tone and sounds more aggressive when I get on it. There is a clip of my exhaust on my build thread but it is not very good and doesn't do it justice at all.
Dean.
