Walker 56158 Exhaust Muffler Assembly - Front

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS muffler assembly Part Number 56158 is a direct-fit OE-style exhaust replacement built for long service life. It is engineered for the 2002-2006 Mazda MPV front position and uses stainless steel construction to help resist corrosion compared with typical aluminized mufflers.

The Quiet-Flow SS line focuses on replacement fit and durable materials for domestic and foreign vehicles. For Mazda MPV owners searching for a front exhaust muffler assembly, Walker 56158 provides a factory-style solution with offset inlet and outlet flange connections.

Key Features

• Direct-fit exhaust muffler assembly for the front position
• Stainless steel muffler and body construction
• Oval muffler shape with regular grade design
• Offset inlet and outlet configuration
• 2-bolt welded flange inlet and outlet connections
• Overall length: 61.75 in.
• Body dimensions: 21 in. length, 11 in. width, 5.5 in. height
• Inlet and outlet outside diameter: 1.9 in.

Detailed Description

Walker 56158 is a Quiet-Flow SS exhaust muffler assembly made for the 2002-2006 Mazda MPV, front. It combines OE-style fitment with stainless steel construction for a replacement that matches the vehicle’s exhaust layout while offering improved material durability over standard aluminized designs. The oval body, offset inlet, and offset outlet help maintain the original routing and connection style for the Mazda MPV exhaust system.

This part cross-references BRExhaust 282-655 and Carlson 7667 for the same application. Walker 56158 is a practical choice when replacing a worn or corroded front muffler assembly on a Mazda MPV and when maintaining factory-style exhaust geometry matters.

What This Part Helps Address

• Exhaust noise from a damaged or deteriorated muffler
• Rust or corrosion in the original muffler assembly
• Leaks at the muffler body or flange connections
• Restricted exhaust flow caused by internal muffler wear
• Fitment issues when replacing a front Mazda MPV muffler with an OE-style part

Installation Notes and Tips

Verify the vehicle is a 2002-2006 Mazda MPV with the front muffler application before ordering. Confirm the 1.9 in. inlet and outlet diameter, the 2-bolt welded flange connections, and the offset configuration against the original exhaust assembly. Matching the existing exhaust routing and flange style helps ensure proper alignment during installation.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built as direct-fit OE-style replacements using stainless steel construction for longer service life than typical aluminized mufflers. Part Number 56158 is part of Walker’s Quiet-Flow SS product line for domestic and foreign vehicle applications.