Description: All models. 4.2l. 129 wheelbase. 4.2L, long wheel base.

Description: Envoy/Trailblazer. 4.2l. 129 wheelbase. Without Envoy XUV. With air level control. 4.2L, long wheel base, with level control. Has the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's exhaust system Helps guide exhaust to the exterior of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: 4.2L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: 4.2L, long wheel base. 5.3L, long wheel base.

Description: Helps secure and support your vehicle's exhaust pipe to the underside of the vehicle Helps prevent excessive vibration and noise from entering the interior cabin This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors