GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Catalytic Converter Heat Shield

3.690

Exhaust Muffler Heat Shield

3.705

Exhaust Muffler (with tail pipe)

3.701

Exhaust Pipe Front Heat Shield

3.616

Exhaust Pipe Heat Shield (at fuel tank)

3.616

Exhaust Tail Pipe

3.705

Intermediate Exhaust Pipe

3.609

Three Way Catalytic Converter (with exhaust manifold pipe)

3.685