Boxster S (987) F6-3.4L (2008)
2. Screw down the horns with the fastening nuts -1-. M6: 7.5 ft. lbs.
3. Insert both electrical connectors until they perceptibly engage.
4. Position the holder with the horns on the body and screw down with the fastening nuts -2-. M8: 17 ft. lbs.