I have a 2014 SG with just 4" slip on rineharts, and I'm thinking of upgrading to a full exhaust. I've narrowed it down to 3 systems. The V&H Pro Pipe w/comp baffle, The Bassani Road Rage 2 into 1, or the Slimline Duals Rinehart Header. I've heard the V&H and Bassani systems, but I haven't heard the slimline duals in person, probably cause they won't sell to California but I can get around that. What do you guys think? My biggest draw back is I already have 650 invested in the slip ons and I dont want to spend another 650 on the Slimline duals and not like them. Anybody have good quality sound bites of that system? Again what do you guys think?