• Motorex air filters, which have been precisely designed to meet this performance specification,
•  have been developed in collaboration with a prestigious European manufacturer. 
• The core of every Motorex air filter is its filtration medium, namely polyurethane foam
•  which the company developed especially for off-road use. The material is easy to clean,
•  dries quickly and is ready for use again within a short time. The special polyurethane 
• blend retains it shape and filtering properties, even after it has been washed countless times
• . This is due to a permanently flexible binder in the foam, which keeps the 
• filter supple and protects the cell structure from damage.
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• Every Motorex air filter consists of two layers of foam with different porosity, and a flame
•  lamination process is used to weld these to form a mould. The cells of the outer layer act as a pre-filter 
• and keep out coarse dirt, whereas the fine-pored inner cell layer traps even the smallest of dirt particles. 
• The extra-wide and breathable foam seal ensures the maximum contact surface to the air filter
•  box and guarantees that no unfiltered air will pass through the intake tract, 
• even under the toughest riding conditions.
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• Motorex air filters not only provide maximum protection but also provide the best
•  pre-requisites for maximum engine performance. Thanks to their shape, the performance
• filters improve the volume of air around the filter and boost the pressure at the intake tract, 
• yet they are much slower to clog than conventional filters. This will enhance the riding experience, 
• whilst also giving the engine optimum protection and, last but not least, 
• the reusable filter produces less waste, thus benefiting the environment and reducing costs.
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• SUITS FOLLOWING MODELS
• YZ450F 2010-2013