notstock...just wanted to let you know I searched for you exhaust through my distributor and they are out and discontinued so you will probably have to find one on ebay

 

Hey there, this might sound funny, but I just rejetted my 500. I got the bike used that had a full muzzy exhaust on it. I bought the stage one and three jet kit for it. I just installed it yesterday, and IMMEDIATELY found better horsepower... I bought a K&N for it, but come to find out the jackass that had it before me already installed one and with the performance exhaust you really need to jet it. Jets are something that you really need to do ASAP, and if you have already, sorry I didnt read the whole topic. I am sure my 30 MPG will go up to about 60 MPG after this change. Hope everything gets better!