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Home >> Chevrolet >> 2015 >> Impala LS, 2.5L Eng VIN L >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Specifications >> Fastener Specifications

Fastener Specifications

Application Specification
Metric English
Catalytic Converter to Cylinder Head Fastener (LFX)
  • First Pass
20 N.m 15 lb ft
  • Second Pass
45 N.m 33 lb ft
Catalytic Converter Brace Fastener (LFX) 58 N.m 43 lb ft
Catalytic Converter Brace Fastener (LKW) 22 N.m 16 lb ft
Catalytic Converter to Exhaust Manifold (LKW) 50 N.m 37 lb ft
Drivetrain and Front Suspension Support Fasteners (Front Hanger Bracket) 60 N.m 44 lb ft
Drivetrain and Front Suspension Support Fasteners (Front Suspension Frame) 160 N.m 118 lb ft
Exhaust Pipe Front Hanger Bracket Isolator Fastener 9 N.m 80 lb in
Exhaust Front Pipe-to-Muffler Fastener (LFX, LKW) 18 N.m 13 lb ft
Exhaust Front Pipe to Catalytic Converter Fastener (LFX) 50 N.m 37 lb ft
Exhaust Front Pipe to Catalytic Converter Fastener (LKW) 25 N.m 18 lb ft
Exhaust Manifold Heat Shield Fasteners (LKW) 14 N.m 10 lb ft
Exhaust Manifold to Cylinder Head Fasteners (LKW)
  • First Pass
20 N.m 15 lb ft
  • Final Pass
20 N.m 15 lb ft
Exhaust Rear Pipe Hanger Bracket Fastener 22 N.m 16 lb ft