ADD POWER TO YOUR 400EX TOP END!!

Fits Honda TRX400EX and TRX400X(XR400R too)

Years 1999 2000 2001 2002 2003 2004

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

This kit includes:

• NEW 87mm cylinder
• 11:1 Wiseco piston kit
• Cometic top end gasket kit

This kit is compatible with all OEM components.  The piston uses pump or race gas.

We ship worldwide & ship all domestic orders free!