Davico 48256 Catalytic Converter - Front

Dealer Alternative Catalytic Converter

Davico Part Number 48256 is an exact-fit catalytic converter built for BMW applications that need a direct exhaust replacement. It uses OEM-style wash coat technology, precious metal loadings, and a larger substrate to increase oxygen storage capacity and address high-mileage or poorly maintained engine conditions.

This BMW catalytic converter is cataloged for front exhaust applications and is part of Davico’s Dealer Alternative Exact-Fit Catalytic Converter line. Part number 48256 is engineered as an alternative to OE replacement converters for vehicles that are sensitive to emissions-system performance.

Key Features

• OEM-style wash coat technology for emissions-system compatibility.
• Precious metal loadings and larger substrate construction.
• Greater oxygen storage capability for demanding service conditions.
• 8-bolt fixed flange inlet and 2-bolt fixed flange outlet.
• Uses two oxygen sensors.
• Overall length: 29.5 inches.

Fitment Details

• Fits 2003-2006 BMW 325Ci, front.
• Fits 2003-2005 BMW 325i, front.
• Fits 2001-2005 BMW 325xi, front.
• Fits 2004-2005 BMW 330Ci, front.
• Fits 2004-2005 BMW 330i, front.
• Fits 2001-2005 BMW 330xi, front.
• Fits 2001-2003 BMW 325Ci, front.
• Fits 2001-2003 BMW 325i, front.
• Fits 2001-2003 BMW 330Ci, front.
• Fits 2001-2003 BMW 330i, front.
• Fits 2001-2002 BMW Z3, front.

What It Helps Address

• Restricted exhaust flow from a failing catalytic converter.
• Emissions faults tied to aging substrate performance.
• Oxygen storage loss caused by high-mileage operation.
• Fitment issues when replacing a worn OE-style converter.
• Exhaust system leaks at flange connection points.

Installation Notes

Confirm the inlet and outlet flange styles, oxygen sensor count, and overall length before installation. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Verify emissions restrictions for your state before ordering, since listed applications include California and New York limitations.

Quality Assurance

Davico’s Dealer Alternative Exact-Fit Catalytic Converter line is built with OEM-style wash coat technology and higher oxygen storage capacity to address demanding service conditions in BMW exhaust systems.