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YFZ450R Crankcase Ventilator System

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If you ride a YFZ450R and are sick of having your airbox fill with engine oil and drip on your swing arm we have the answer for you.

The crankcase ventilator mounts to the side of the engine to replace the airbox-mounted OEM breather box and is guaranteed to eliminate the problem of crankcase blow-by causing oil to leak over the rear of the bike.

Made from solid stainless steel with dual mounts so it wont crack from engine vibration or flexing over time. Internal baffles keep the oil in your engine while still allowing the crankcase to vent efficiently.  The system has been tested and proven by top level MX racers and at the Finke Desert Race.

This system allows you to remove all the stock breather lines and replace them with this simple solution for a cleaner look and guaranteed results.

**Comes with fitting instructions**