Innovative K&N Air Filter for Yamaha WR250F & WR450F Dirt Bikes Now Available
K&N Engineering released a new MX XStream, Replacement High-Flow Air
Filter for the 2003-2009 Yamaha WR250F and WR450F (YA-4503). This new filter is great for
enthusiasts and off-road riders and racers alike. The innovative and unique
filter design makes installation, changing and cleaning a breeze.
K&N invented the pleated cotton filter more than 35 years ago for the
power sports market. Designed to increase airflow, K&N filters offer more
surface area (than foam filters), increased filtration and optimum air flow.
K&N's MX XStream Replacement High-Flow Air Filter for the 2003 to 2013 Yamaha WR250F and WR450F
Installation of the K&N XStream Filter is easy. With the top removed, you can
easily press the sides together to slide it in between your frame rails and
install it into the air-box without the oily mess associated with many other air
"This filter comes with a gasket, which makes it unnecessary to run grease at
the base of the filter," said K&N Powersports Brand Manager, John Jump. "It's a
nice benefit and makes for a very clean filtration system. On this particular
filter, you mount the gasket directly to the airbox."
Kyle Krause, who currently races Expert in the Best in the Desert and WORCS Series, has been racing for 19 years now. "I ran the new MX XStream on a 450," said Kyle. "I noticed more power right away and the filter is very easy to install and clean.
Cleaning is a simple process and K&N offers a
filter care service kit (sold
separately) with everything needed to clean and re-oil your filter numerous
times. K&N's larger filtration area offers riders longer service intervals
meaning more riding and less cleaning.
Find K&N products for your motorcycle, off-road dirtbike, ATV, or vehicle using the K&N application search.
dealer search to find a K&N dealer in your area.
Current list of applications for YA-4503 Performance XStream Air Filter are:
2013 YAMAHA WR250F
2012 YAMAHA WR450F
2012 YAMAHA WR250F
2011 YAMAHA WR450F
2011 YAMAHA WR250F
2009 YAMAHA WR450F
2009 YAMAHA WR250F
2008 YAMAHA WR450F
2008 YAMAHA WR250F
2007 YAMAHA WR450F
2007 YAMAHA WR250F
2006 YAMAHA WR250F
2006 YAMAHA WR450F
2005 YAMAHA WR250F
2005 YAMAHA WR450F
2004 YAMAHA WR250F
2004 YAMAHA WR450F
2003 YAMAHA WR250F
2003 YAMAHA WR450F