This package is for YFZ450R owners that don’t want to break the bank or lose the legendary Yamaha reliability, but still want more power, torque and response. A proven package that’s been used for years in MX, desert and trail
Matched with the right exhaust this will give a 20-30% increase across the rpm range over a stock bike (we can help with exhausts too, click here
*send your head in and we port your head.
We don't do a core/exchange program so you can be confident you wont get someone elses exchange head that might have worn parts such as valve guides or seats.