Davico 18273 Catalytic Converter - Front

Exact-Fit Front Catalytic Converter for BMW

Davico 18273 is an exact-fit manifold catalytic converter built from original equipment sample parts to match the factory layout on select BMW 525i, 525xi, 530i, 530xi, 528i, and 528xi front applications. It uses a high-quality emissions-reducing catalyst for OBDII-equipped vehicles and is designed for direct replacement service.

Key Features

• Exact-Fit Catalytic Converter - Manifold design for front exhaust placement
• Fits BMW 2006-2007 525i, 525xi, 530i, and 530xi front applications
• Fits BMW 2008 528xi front and BMW 2008-2010 528i front applications
• OE-style fit based on original equipment sample parts
• 8-bolt fixed flange inlet and 2-bolt fixed flange outlet
• Gaskets included
• Two oxygen sensor locations
• Overall length: 31 in.; height: 5 in.; width: 12 in.

Product Details

Davico Exact-Fit Catalytic Converter - Manifold part number 18273 is engineered for direct replacement on the front exhaust section of select BMW 5 Series models. This manifold converter is built to match factory mounting points and exhaust routing, helping maintain proper fit and function on OBDII vehicles. The design includes an 8-bolt fixed flange inlet, a 2-bolt fixed flange outlet, and provisions for two O2 sensors. Davico 18273 is a practical choice for BMW 528i, 528xi, 525i, 525xi, 530i, and 530xi front converter service where OE-style dimensions and emissions control are required.

Common Issues This Part Can Address

• Failed catalytic converter efficiency codes
• Exhaust leaks at the manifold converter connection
• Check engine light related to catalyst performance
• Restricted exhaust flow from a damaged converter
• Fitment problems caused by non-OE-style replacement parts

Installation Notes and Tips

Confirm the vehicle is equipped with the correct front manifold converter configuration before ordering. This part uses an 8-bolt fixed flange inlet and 2-bolt fixed flange outlet, and the included gaskets should be matched to the mating surfaces during installation. Davico notes use of Decarbonizing Induction Kit 1540ea with this application. This part is not legal for use in California and is illegal for installation in New York on vehicles equipped with California emission systems.

Quality Assurance

Davico designs Exact-Fit Catalytic Converters using original equipment sample parts to help ensure proper fit and function. Part number 18273 uses a high-quality emissions-reducing catalyst intended for current OBDII vehicle demands.