Boxster S (987) F6-3.4L (2008)
1. Remove the exhaust manifold. Unscrew six hexagon-head bolts (M8 x 26) -Arrows- on the cylinder head. Get another person to hold the
component if necessary.
2. Remove exhaust manifold (with primary catalytic converter) -3- and flange gasket -2-.
Installing exhaust manifold
INFORMATION:
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Always replace exhaust manifold screws during installation.
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Replace lock nuts.
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Replace gaskets.
1. Clean sealing surfaces on manifold flange and cylinder head using a brass wire brush for example.
2. Replace manifold seal -2- . Check that it is installed correctly - locating studs and beads must point to the cylinder head.
3. Fit exhaust manifold (with primary catalytic converter) -3- on the cylinder head and triangular flange with new metal seals. Get another person to
help if necessary.
4. Position six new hexagon-head bolts (M8 x 26) -Arrows- by hand and tighten them from the inside outwards. Tightening torque: 23 Nm (17 ftlb.)
Subsequent work