For 1990-2009 cars

1. Install a NEW left exhaust manifold gasket.
2. Install the left exhaust manifold.
3. Loosely install the left exhaust manifold upper bolts into the left cylinder head.

Caution: Refer to Fastener Caution in the Preface section.

4. Loosely install the left exhaust manifold lower bolts into the left cylinder head.
5. Tighten the left exhaust manifold bolts to 25 N·m (18 lb ft)..
6. Place the left exhaust manifold heat shield in position.
7. Install the exhaust manifold heat shield bolts and tighten to 10 N·m (89 lb in).