Legacy F4-2.5L Turbo (2008)
Spark Plug: Specifications
Spark plug
Spark plug gap mm (in)......................................................................................................................................................................0.7 - 0.8 (0.028 - 0.031)
Thread size (diameter, pitch, length) mm............................................................................................................................................................14, 1.25, 26.5
Tightening torque:
1. RH SIDE
Spark plug........................................................................................................................................................................21 N.m (2.1 kgf.m, 15.5 ft.lb)
2. LH SIDE
Spark plug........................................................................................................................................................................21 N.m (2.1 kgf.m, 15.5 ft.lb)