Here is a brief how to installation guide on the Agency Power Porsche 987 Cayman or Boxster performance racing plenum kit.  This kit fits both the 2.7L and 3.4L engines and includes all components necessary for replacing the OEM unit.  You will need some basic hand tools, patience, and automotive experience.  Once the engine lid is removed from under the carpet behind the front seats, you can start to remove the factory plenum.  Make sure to check all your clamps, connections, and sensors before going for a test drive.  Any questions, just contact us!