426cc Big Bore Kit - Honda TRX400EX TRX400X XR400
$325.00
{{option.name}}:
{{selected_options[option.position]}}
{{value_obj.value}}
426 Big Bore Kit +3mm (88mm) big bore kit, includes JE Pistons complete piston kit and aCometic top-end gasket kit. This kit for your 400EX, 400X or XR400 gives a noticeable power increase without a loss in reliability. Available in 2 different compression ratios. This kit requires your stock cylinder to be bored and honed – if you’d like us to do that work, just contact us. Fits: Honda TRX400EX 1999-2008 Honda TRX400X 2009-2014 Honda XR400 1996-2007
Show More
Show Less