For 1990-2009 cars

## GM SPO Group Numbers 2.4L

Application | GM SPO Group Number
--- | ---
Catalytic Converter Heat Shield | 03.690
Exhaust Muffler Heat Shield | 03.705
Exhaust Muffler (with crossover pipe) | 03.701
Exhaust Muffler (with exhaust pipe and tail pipe) | 03.701
Exhaust Pipe Front Heat Shield | 03.616
Exhaust Pipe Heat Shield (at fuel tank) | 03.616
Exhaust Tail Pipe | 03.705
Second Oxygen Sensor | 03.682
Three Way Catalytic Converter (with exhaust manifold pipe) | 03.685

## GM SPO Group Numbers 3.1L

#### N Car 3.1 Single Exhaust

Application | GM SPO Group Number
--- | ---
Catalytic Converter Heat Shield | 03.690
Catalytic Converter Temperature Alarm Sensor | 03.686
Exhaust Crossover Pipe | 03.609
Exhaust Crossover Pipe Heat Shield | 03.616
Exhaust Muffler Heat Shield | 03.705
Exhaust Muffler (with tail pipe) | 03.701
Exhaust Pipe Front Heat Shield | 03.616
Exhaust Pipe Heat Shield (at the fuel tank) | 03.616
Exhaust Tail Pipe | 03.705
Intermediate Exhaust Pipe | 03.701
Secondary Heated Oxygen Sensor | 03.682
Three Way Catalytic Converter (with exhaust manifold pipe) | 03.685