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These heads bump the performance of the 650 to a whole new level utilizing our latest combustion chamber design coupled with a higher compression ratio. This results in snappy throttle response with great top end pull. 91 octane fuel required.
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Take your Boost to the next level! This Power Dome™ head set designed specifically for the Polaris Boost engine climbs to a new performance altitude with an impressive increase of 5 horsepower peak. Its unique dome design increases combustion efficiency to ramp up top-end power and also provide much broader performance at all throttle positions, including ultra-responsive bottom-end.
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One of the most critical parts in your fueling system is the injector. Over time with normal use, your fuel injector can develop deposits that prevent them from metering fuel correctly. These deposits can cause inconsistencies in performance, poor fuel economy and runability problems with your sled. Our fuel injector cleaning service will remove the deposits and as an added benefit we will check the flow rate to ensure that it operates within its normal flow range.
Both injectors must be sent for testing. ALL o-rings must be replaced. Learn More