The stock jet should be a #130, so the #132 should be close to what you need.
Did you use ear plugs when your stock exhaust was on? lol, I have the FMF on my Rincon and its a little bit louder at idle but the baffles do a great job at keeping it quite when your on the throttle. Hardly any louder than stock.It was very easy to install. It is definitelt not quiet at all. Has a nice snap to it and even sounds better when it is under compression. I did notice a power gain with the mods I have made, but still want more.