Bosal 171-671 Exhaust Resonator - Rear

Direct-Fit Resonator for OE Sound Control

The Bosal BRExhaust Direct-Fit Exhaust Resonator, part number 171-671, is built for drivers who want a direct replacement that helps maintain the original exhaust tone. It uses aluminized steel construction for durability and corrosion resistance, with a flanged inlet and tip-style outlet for a vehicle-specific installation.

Compatible with select Ford Escape, Mazda Tribute, and Mercury Mariner rear exhaust applications, this resonator is engineered to reduce unwanted exhaust noise and backpressure while preserving the OE sound profile.

Key Features

• Direct-fit exhaust resonator assembly for rear exhaust placement
• Aluminized steel body and pipe construction for corrosion protection
• Round resonator shape with a 3-inch body diameter
• Flanged inlet with 2-bolt flange design for application-specific mounting
• Designed to reduce unwanted exhaust noise and backpressure
• Part number 171-671 for easy identification

Product Line Details

BRExhaust Direct-Fit Exhaust Resonator products are built as application-specific replacements that follow the original exhaust layout more closely than universal parts. This line focuses on restoring factory-style exhaust sound and fitment while using aluminized steel construction for long-term service in everyday driving conditions.

Detailed Description

Bosal 171-671 is a direct-fit premium resonator assembly designed for rear silencer applications on select 2001-2008 Ford Escape, 2001-2006 and 2008 Mazda Tribute, and 2005-2008 Mercury Mariner models. The resonator’s flanged inlet, tip outlet, and 47.5-inch overall length support a vehicle-specific exhaust replacement that aligns with the original system layout. If you are searching for a Ford Escape rear exhaust resonator, Mazda Tribute rear silencer replacement, or Mercury Mariner direct-fit resonator, this part number 171-671 is built for those applications.

This part cross-references Monroe Shocks & Struts (e.g., AJ05-40-3A0B, AJ05-40-3A0C) for the same application.

What It Helps Address

• Exhaust drone or resonance from a worn rear silencer
• Excessive exhaust noise compared with OE sound levels
• Backpressure changes caused by a deteriorated resonator
• Corrosion-related exhaust replacement needs
• Fitment issues from using a non-direct replacement part

Installation Notes and Tips

Fits 2001-2008 Ford Escape, rear. Fits 2001-2006 Mazda Tribute, rear. Fits 2008 Mazda Tribute, rear, split date to 6/23/2008. Fits 2005-2008 Mercury Mariner, rear. Confirm flange style, outlet diameter, and overall exhaust routing before installation. Because this is a direct-fit resonator assembly, it is intended to match the listed rear exhaust applications without modification to the vehicle-specific layout.

Quality Assurance

Bosal BRExhaust components are engineered as direct-fit replacements with aluminized steel construction to support durability and corrosion resistance in exhaust service. Part number 171-671 is built to meet the listed OE-style application requirements for the Ford Escape, Mazda Tribute, and Mercury Mariner rear exhaust positions.