GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Catalytic Converter Heat Shield

3.690

Exhaust Muffler (w/Exhaust Pipe)

3.701

Exhaust Muffler Crossover (w/Muffler) (Single)

3.609

Exhaust Muffler Heat Shield

3.705

Exhaust Pipe Heat Shield

3.616

Exhaust Resonator

3.702

Exhaust Resonator (w/Muffler to Resonator Pipe) (Single)

3.702

Exhaust Resonator Hanger (RR)

3.704

W/UP 3-Way Catalytic Converter (w/Exhaust Pipe)

3.685