Overall diameter is 4".

2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo Silver exhaust muffler and gasket on concrete. 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix photo 2002 Pontiac Grand Prix exhaust system with muffler and rusted hangers. Underside of a vehicle showing exhaust pipe and rusty mounting brackets. Rusted welds on a vehicle's exhaust system muffler. Underside of a vehicle showing rusted frame and exhaust hangers with rubber isolators. Underside of a vehicle showing rusted frame, exhaust hanger, and exhaust pipe. Underside of a vehicle showing an exhaust hanger and pipe. Underside of a car showing exhaust pipe, viewed from a low angle on gravel. 60photos in this albumView all