Replacement for Kawasaki KLX450R 2008-2009 / Kawasaki KX450F 2006-2009. Outlet size: 50mm(OD) 40mm(ID). Inlet Size: 56mm(OD) 44mm(ID). Universal modify / Direct Fit,no need any modification. Quickly speed up / Save fuel. Direct Replacement For A Proper Fit And Easy Installation.
