Envoy 2WD V8-5.3L VIN M (2005)
11. Install the nuts securing the right catalytic converter to the exhaust manifold.
Tighten the nuts to 50 N.m (37 lb ft).
12. Install the nuts securing the left catalytic converter to the exhaust manifold.
Tighten the nuts to 50 N.m (37 lb ft).
13. Lower the vehicle.