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exhaust pipes

MOTOCROSS ACTION PRODUCT TEST: DR.D KAWASAKI KX450F EXHAUST SYSTEM

WHAT IS IT? An easy horsepower modification for the Kawasaki KX450F. WHAT’S IT COST? $619.99. CONTACT? www.dubachracing.com or (877) 382-2241. WHAT STANDS OUT? Here’s a list of things that stand out with the 2010 DR.D KX450F exhaust. (1) Development. The KX450F received engine mods for 2010 that made a notable difference in power output. So, DR.D went back to work on developing a pipe to address the specific needs of the new bike. They lengthened the head pipe compared to the 2009 version and changed th…