[GAP230]

I am planning on getting a new exhaust for my 230. I was thinking about the Bug Gun Mini Evo. What do you think? How should I re-jet it. How much is it going to cost? Can i do it on my own. It cant be that hard to put the Big Gun Exhaust on, just a couple of bolts. Im just worried about the jetting. I might put a Big Gun Rev box on too. Do i have to modify anything else with that?