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Fastener Tightening Specifications

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fastener Tightening Specifications

Application Specification
Metric English
Catalytic Converter Nut 60 N.m 44 lb ft
Catalytic Converter Pipe Stud Nut 35 N.m 26 lb ft
Exhaust Crossover Pipe Nut (LS4) 25 N.m 18 lb ft
Exhaust Hanger Bracket Bolt 25 N.m 18 lb ft
Exhaust Manifold Bolt (LS4)
  • First Pass
15 N.m 11 lb ft
  • Final Pass
20 N.m 15 lb ft
Exhaust Manifold Heat Shield Bolt (LS4) 9 N.m 80 lb in
Exhaust Pipe Rear Hanger Bolt 25 N.m 18 lb ft
Rear Bumper Impact Bar Bolt 25 N.m 18 lb ft
Tail Pipe Extension Clamp 68 N.m 50 lb ft