Tightening specifications for exhaust manifold/turbocharger

Fig 1: Exhaust Manifold/Turbocharger Nuts Tightening Sequence

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1-9	M8 nut - initial tightening: → Initial tightening: 20 Nm (15 ft lb.)
1-9	M8 nut - final tightening: → Final tightening: 27 Nm (20 ft lb.)

Tightening sequence 1 to 9 for both cylinder banks - always starting at the chain housing cover!