AP Exhaust 700485 Exhaust Muffler - Rear

AP Exhaust 700485 Muffler Overview

AP Exhaust 700485 is a rear exhaust muffler built for direct-fit service on select Buick applications. It uses an oval aluminized steel body with a baffled design and OE-comparable sound level for a factory-style exhaust tone.

Compatible with 2005-2009 Buick LaCrosse, rear, and 2005-2007 Buick Allure, rear. This AP Exhaust muffler is a practical replacement for vehicles with a welded OE exhaust assembly, including single-exhaust setups.

Key Features

• Part number: 700485
• Series: MSL
• Body material: aluminized steel
• Oval muffler shape with baffled internal construction
• OE-comparable sound level
• Inlet: 2.25 in. pipe, right-center location
• Outlet: 2.25 in. spout, center location
• Overall length: 22.75 in.
• Body dimensions: 7 in. height, 14 in. length, 9 in. width
• Rear-position exhaust muffler for direct-fit replacement service

Detailed Description

AP Exhaust 700485 is an exhaust muffler engineered for rear installation on the Buick LaCrosse and Buick Allure applications listed above. The aluminized steel body helps provide durable exhaust service, while the baffled muffler design supports an OE-style sound profile rather than an aggressive tone. With a 2.25-inch inlet and 2.25-inch outlet, this muffler is sized for the specified single-exhaust configurations and direct-fit replacement needs.

For shoppers searching for a 2005-2009 Buick LaCrosse rear muffler or a 2005-2007 Buick Allure rear exhaust muffler, part number 700485 offers a straightforward replacement option. It is also a relevant choice when replacing a welded factory exhaust assembly on these vehicles.

What This Muffler Helps Address

• Rust or corrosion in the original rear muffler
• Exhaust noise caused by a failing internal muffler structure
• Factory exhaust tone that has become louder than normal
• Replacement needs after damage to a welded OE exhaust assembly
• Restoring proper rear exhaust function on Buick LaCrosse and Buick Allure models

Installation Notes and Tips

Verify rear-position fitment before ordering and confirm the inlet and outlet dimensions match the vehicle’s exhaust layout. Because the OE system was a welded assembly, replacement may require attention to the full exhaust section noted for the application. Professional exhaust installation is recommended for proper alignment and sealing.

Quality Assurance

AP Exhaust manufactures replacement exhaust components for direct-fit service applications. Part number 700485 is built with aluminized steel construction and an OE-comparable sound target for the listed Buick fitments.