I just bought a kfx700 and am in the process of buying some "go fast" goodies. My family takes a 2 week vacation to the oregon dunes every year and their decibel levels are around 92-93. Any recommendations for best horsepower/lowest noise balance for the exhaust? It's a 12 hour drive for us to get there, so I don't want to get shut down by rangers. I've heard the Muzzy's do well for this, but I like the looks of the dual systems. Any helpful input is appreciated, I'm dying 2 get this thing done and tear up some sand!