Boxster S (987) F6-3.4L (2008)
Spark Plug: Specifications
Electrode gap.....................................................................................................................................................................................................1.6 ± 0.05 mm
Spark plug
Using new spark plugs.............................................................................................................................................................Tightening torque: 22 ft. lbs.
Re-using old spark plugs..........................................................................................................................................................Tightening torque: 19 ft. lbs.