Fuel injection is tunable with power commander computer and auto tune module you can tune manually with laptop and software if you want. Yoshimura exhaust with o2 sensor and flame arrestor . Hoser upgraded steering stem with adjustable steering tensioner to help steering stability on trails or the race track. Flexx handle bars to help with pump in wrists, elbows and shoulders. Foot pegs with nerf bars and nets for extra rider safety. All aluminum skid plates for better frame and rock protection. Needs seat it’s usable but not pretty and a new battery.