Impreza WRX STI F4-2.5L DOHC Turbo (2007)
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STI model
Tightening torque: 35 Nm (3.6 kgf-m, 26 ft. lbs.)
6. Install the upper and lower exhaust manifold covers (LH).
Tightening torque:
Turbo model 7.5 Nm (0.8 kgf-m, 5.5 ft. lbs.)
STI model 19 Nm (1.9 kgf-m, 13.7 ft. lbs.)
7. Install the lower exhaust manifold cover (RH).
Tightening torque:
Turbo model 7.5 Nm (0.8 kgf-m, 5.5 ft. lbs.)
STI model 19 Nm (1.9 kgf-m, 13.7 ft. lbs.)
8. Install the front oxygen (A/F) sensor.
9. Install the under cover.
10. Connect the battery ground cable to battery.
3. Center Exhaust Pipe
REMOVAL
1. Set the vehicle on a lift.
2. Disconnect the ground cable from battery.
3. Remove the intercooler.
4. Remove the intercooler bracket.