GM Service Manual Online
For 1990-2009 cars only

The exhaust pipe carries exhaust gases treated by the three-way catalytic converter through a resonator and on to a muffler with tail pipe. As exhaust gases travel through the resonator and muffler baffles, exhaust noise is lessened. The exhaust system exits at the rear of the vehicle to reduce exhaust noise and eliminate fumes from entry into the vehicle. Exhaust system hangers made out of rubber support the weight of the exhaust pipe, resonator and muffler. The exhaust system hangers also space the exhaust system away from the underbody of the vehicle and allow for exhaust system expansion that occurs as the exhaust system warms up.

The muffler is available as a serviceable component of the exhaust pipe. In order to secure a replacement muffler to the exhaust pipe, the exhaust system utilizes a slip-joint coupling design, with a clamp and a U-bolt.