Bosal 233-171 Exhaust Muffler Assembly - Rear

Bosal BRExhaust Direct-Fit Muffler Assembly

The Bosal BRExhaust Direct-Fit Exhaust Muffler Assembly is built for OE-style exhaust replacement with a factory-like sound profile and low backpressure. This direct-fit muffler assembly is a practical choice for rear exhaust service on select Volkswagen applications, including Volkswagen CC and Volkswagen Passat models.

Part number 233-171 is constructed from aluminized steel and 16-gauge steel tubing for corrosion resistance and durable everyday use. The oval muffler body, sleeved inlet, and tip-style outlet support a clean, direct replacement for rear silencer service on the Volkswagen Passat and Volkswagen CC.

Key Features

• Direct-fit exhaust muffler assembly for bolt-on replacement
• Aluminized steel construction for corrosion protection
• 16-gauge steel tubing for durable exhaust service
• Oval muffler body with OE-style direct-fit configuration
• Designed for quiet operation and reduced exhaust noise
• Low-backpressure design supports factory-style exhaust flow
• Compatible with rear-position applications on select Volkswagen models

Product Details

Part number 233-171 is part of the Bosal BRExhaust Direct-Fit Exhaust line, a product series focused on OE-style exhaust replacement for import and domestic vehicles. This muffler assembly uses an aluminized finish, a 2.375-inch inside diameter sleeved inlet, and a 2.5-inch outside diameter tip outlet. The overall 44-inch length and oval body design help maintain the original exhaust layout while supporting quiet rear silencer performance. Fits 2009-2013 Volkswagen CC, rear. Fits 2006-2010 Volkswagen Passat, rear. Fits 2010 Volkswagen Passat CC, rear.

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

Common Issues This Part Addresses

• Exhaust noise from a worn or rusted rear muffler assembly
• Corrosion damage in the rear silencer section
• Factory exhaust tone that has become louder over time
• Restricted exhaust flow caused by deterioration inside the muffler
• Need for a direct replacement on Volkswagen CC and Volkswagen Passat rear exhaust service

Installation Notes and Tips

This is a direct-fit exhaust muffler assembly for rear-position installation. It is designed for bolt-on replacement with no modifications required, but if the original system is welded, replace all required parts as noted in the fitment data. Verify the inlet and outlet dimensions against the existing exhaust before installation on your Volkswagen Passat or Volkswagen CC.

Quality Assurance

Bosal sources this BRExhaust muffler assembly through an OE-supplier manufacturing approach to support factory-like fit, sound, and performance. The aluminized construction adds corrosion protection for long-term exhaust service.