I wanted to know if I need a special tool to remove after vtec solenoid is removed from the cylinder head. According to the cylinder diagram, part 13 was not listed. Does anyone know what that part is and where to purchase. I got my diagram from Majestic Honda. Also, can someone advise me on the correct size extension bar and type of socket to remove bolts to the vtec solenoid without having to remove any components other than the upper oem inlet tube. Thanks.