I am looking for some weight loss on my 2001 MXZ 700 and was considering putting one of these on. They are supposed to give a 9lb reduction. I am not interested in it being loud, I would prefer it to be as quiet as my stocker. I have read in other articles that they are not much louder then stock then I read something different saying they are quite loud. I am only looking for some weight loss here. I can get one pretty cheap that is in new condition. Should I spend the money or is it going to be too loud? Also the people at snostuff claim it will give a 5hp gain and I tend not to believe that hype. Anyone with experience in that end? I have heard that they actually will loose power. Just looking for opinions here. I do NOT want to be that guy with the annoyingly loud sled!