Sierra 2500 2WD V8-6.6L DSL Turbo (2007)
5. Install and tighten the exhaust pipe to exhaust manifold bolts in the sequence shown (1, 2, and 3).
Tighten the bolts to 53 N.m (39 lb ft).
6. Position the exhaust manifold heat shield (2) to the manifold and install the bolts (1).
Tighten the bolts to 10 N.m (89 lb in).
