GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Converter, Warm-Up Three-Way Catalytic

3.685

Muffler, Exhaust (with tailpipe)

3.701

Pipe, Exhaust Manifold

3.609

Shield, Catalytic Converter Heat

3.690

Shield, Exhaust Muffler Heat

3.705

Shield, Exhaust Pipe Heat

3.616