Cayenne S (9PA) V8-4.5L (2003)
5. Remove the fastening pins. Grip the pins on the rubber ring with a pliers and pull them out.
6. Pull off the Y pipe from the throttle body.
7. Disconnect the air flow sensor connections. To do this, undo the hose clamps on the left and right on the bellows and pull the bellows off the air
flow sensors.
8. Pull off the air flow sensor plug.
9. Remove the vacuum line on the Y pipe. Press the button and remove the vacuum line.