GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Catalytic Converter and Exhaust Muffler Heat Shield (Front)

3.690

Exhaust Crossover Pipe (w/Heat Shield)

3.609

Exhaust Muffler (w/Tailpipe)

3.701

Exhaust Muffler Front Hanger (O-Type)

3.704

Exhaust Muffler Heat Shield (RR)

3.705

Exhaust Pipe Hanger

3.616

Exhaust Resonator (w/Exhaust Pipe)

3.702

Three-Way Catalytic Converter (wExhaust Pipe)

3.685