I have an 08' rzr with an UMP on it and RacerTech 2" lift on it. My stock Y collector glows and I get an occasional backfire as it sits. I came across an almost new S exhaust system for $100 but I am wondering if this will help with performance, heat issues and if I will need to add fuel management. Whats a good user friendly fuel management system if y'all think this is a good idea? Will I need a AFR guage as well? I'm basically a trail rider with a bit of mud when I can't avoid it. Will I have fit issues with the lift I have on it? A poor man has poor ways...