Hear is my problem, I have a 2004 polaris 800 XR and I am looking for a really STRONG set up for a 500-600ft sled be I have a lot of friends that like to run there mouth and i just want to shut them up. I have talked to a lot of people and got a lot of difference answers and none of them really compare to each other. It had V force reed already and a SLP intake, and a 136 in rails but havent desided what size track to go with 1 1/4, 1 3/8, or 1 1/2. I dont want to go to big and rob to much power and really hurt me so any help would be wonderful!! Thanks everyone!!