Impreza WRX STI F4-2.5L DOHC Turbo (2007)
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STI model
2. Install the front exhaust pipe covers.
Tightening torque:
Turbo model 7.5 Nm (0.8 kgf-m, 5.5 ft. lbs.)
STI model 25 Nm (2.5 kgf-m, 18.1 ft. lbs.)
3. Install the upper 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.)
4. Install the front exhaust pipe assembly.
Tightening torque: 35 Nm (3.6 kgf-m, 26 ft. lbs.)
5. Connect the exhaust manifold (RH) to turbocharger joint pipe.
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Turbo model
Tightening torque:
T1: 35 Nm (3.6 kgf-m, 26 ft. lbs.)
T2: 40 Nm (4 kgf-m, 28.9 ft. lbs.)
