These are high quality parts and definitely will dramatically increase the power and fun factor on your bike! Installation requires engine dis-assembly and case boring. Therefore, we highly recommend a professional technician install this kit and the cases bored by a reputable machine shop. Its also recommended that a professional technician make sure its tuned properly once installed. An aftermarket fuel controller is required and possibly an autotune will be needed to prevent a lean condition and damage to your engine.
Additionally, a performance exhaust is also recommended as the stock exhaust is restrictive and may cause your engine to run hotter. This product is legal for closed-course competition use only; for racing vehicles (a competition vehicle not used on public highways). Intended for off-road use or race purposes; may not meet regulations of pollution controlled roads or highways. Not legal for vehicles registered and used in California.Have any questions or concerns? Please send us a message and we will gladly help with any questions you may have. We have been in the motorcycle parts industry for over a decade and are here to help.