Stage 1 Mud Boat kit for Honda GX270/390, Predator 301/420, and many 13-16HP Clone engines.
Add more HP and torque to get that mud boat going!
Kit includes

Rear Exit Header and Muffler
Exhaust Gasket
Billet Air Filter Kit
2 Main Jets (.041 and .042)
AutoLite AR3910X Racing Spark Plug
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Stage 1 Mud Boat Kit GX390 Predator 420

Stage 1 Mud Boat kit for Honda GX270/390, Predator 301/420, and many 13-16HP Clone engines.

Add more HP and torque to get that mud boat going!

Kit includes

  • Rear Exit Header and Muffler
  • Exhaust Gasket
  • Billet Air Filter Kit
  • 2 Main Jets (.041 and .042)
  • AutoLite AR3910X Racing Spark Plug


We do not accept returns on any electrical components.