1978 GMC C15 Flowmaster 40 Series Mufflers Parts

Muffler Type:

Reflection

Inlet Diameter:

3"

Outlet Diameter:

3"

Muffler Type:

Chambered

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

Inlet Diameter:

2.5"

Outlet Diameter:

3"

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"