This includes: New Fel-Pro or Mahle head gasket - New PCV valve - New spark plugs - Full EGR and intake cleaning - New oil and oil filter - New coolant - Hand car wash - engine bay clean - Comes with a one year warranty

This is a preventative maintenance that should be done every 100 thousand miles. It is believed that a plugged EGR sytem is a main contributor of head gasket failure in the Gen 3 Prius