For 1990-2009 cars

### Installation Procedure

1. Install the exhaust manifold gasket.
2. Install the exhaust manifold.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the exhaust manifold retaining nuts and tighten in the sequence shown.

Tighten
Tighten the exhaust manifold retaining nuts 22 N·m (16 lb ft).

4. Install the exhaust flex pipe retaining nuts to the exhaust manifold studs.

Tighten
Tighten the exhaust flex pipe-to-exhaust manifold retaining nuts to 35 N·m (26 lb ft).

5. Install the exhaust manifold heat shield.
6. Install the exhaust manifold heat shield bolts.

Tighten
Tighten the exhaust manifold heat shield bolts to 8 N·m (71 lb in).

7. Connect the oxygen sensor (O2S) connector, if equipped.
8. Connect the negative battery.