Pro Circuit’s exhaust and intake valves for the 2017 CRF450R are designed using in-house dyno testing and manufactured by Del West, the industry leader in F-1 valve technology. Each exhaust and intake valve is CNC-machined and precision ground. A thermal-nitride coating is then applied to increase performance, durability and help reduce normal wear. Pro Circuit’s titanium exhaust and intake valves will help extend the life of your engine while providing a gain in performance for your CRF450R.
Price: $357.95 Intake, $357.95 exhaust