K Series Oil Return Timing Tensioner CoverBallade Sports Billet CNC Oil Return Tensioner Cover Plates are the perfect accessory to any K20 K24 Top Mount or Sidewinder style turbocharger build that uses a factory style timing cover. This is a solution to easily allow the addition of an oil return line or oil catch can drain without any drilling or welding. CNC machined from 6061, these cover return plates feature a threaded port for the included 10AN fitting to act as an easy drain source for