LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> Engine Ignition System (2.5L) >> Spark Plug >> Installation >> RH Side
April 5, 2026: LEMON Manuals is launched! Read the announcement.

RH Side

Install in the reverse order of removal.

Tightening torque (spark plug): 

21 N.m (2.1 kgf-m, 15.5 ft-lb)

Tightening torque (ignition coil): 

16 N.m (1.6 kgf-m, 11.8 ft-lb)