purchased this system for 08 sportsman 800 because it sounded bad to the bone on my friends sportsman. received system and it was defective and would not slide together. big gun tech support is the worst it could be! they wanted to repair the new system and have me ship it to them.lol. they would not even send the correct replacement parts. thanks to motosport they returned the defective system inspected new system before shipping and installation went well. i still highly recommend this system. installed big gun tunner box excellent snapy power and deep powerfull tone.