AP Exhaust 700473 Exhaust Muffler

AP Exhaust 700473 Muffler Overview

AP Exhaust 700473 is a direct-fit exhaust muffler for select Buick Enclave, Chevrolet Traverse, GMC Acadia, and Saturn Outlook applications. It uses an oval, baffled design with OE-comparable sound level and aluminized steel construction for a factory-style replacement on vehicles with a welded OE exhaust assembly.

Key Features

• Part number: 700473
• Series: MSL
• Oval muffler body with baffled internal design
• Aluminized steel body material
• Inlet: 2.25 in. pipe, right center location
• Outlet: 2.25 in. pipe, left center location
• Body dimensions: 5.5 in. height, 11 in. width, 19 in. length
• Overall length: 23 in.
• OE-comparable sound level
• Non-tunable configuration

Detailed Description

AP Exhaust 700473 is built for direct replacement service on vehicles that use a welded factory exhaust assembly. The muffler’s O/OO configuration, 2.25-inch inlet and outlet, and center inlet/outlet layout support a factory-style exhaust path while maintaining OE-comparable sound characteristics. This makes it a practical replacement for drivers servicing a Buick Enclave, Chevrolet Traverse, GMC Acadia, or Saturn Outlook with the correct exhaust configuration. The AP Exhaust 700473 muffler is part of the MSL series and uses aluminized steel to balance corrosion resistance and everyday durability in a regular-grade exhaust application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 2008-2017 Buick Enclave, N/A. Direct fit MSL/Maximum muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
• Fits 2009-2017 Chevrolet Traverse, N/A. Direct fit MSL/Maximum muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced; single exhaust.
• Fits 2007-2017 GMC Acadia, N/A. Direct fit MSL/Maximum muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
• Fits 2007-2010 Saturn Outlook, N/A. Direct fit MSL/Maximum muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.

Installation Notes

Verify inlet and outlet diameter, center locations, and overall length before installation. Because the OE system was welded, replacement may require attention to adjoining exhaust components and any parts identified in the vehicle notes. Confirm the vehicle’s exhaust layout before ordering, especially on Chevrolet Traverse single-exhaust applications.

Quality Assurance

AP Exhaust manufactures this muffler as a direct-fit replacement in the MSL series, with aluminized steel construction and OE-comparable sound output for the listed applications.