Davico
Dealer Alternative Exact-Fit Catalytic Converter

Davico 48312 Catalytic Converter - Left

Brand Davico 48312
Position Left
Gaskets Included Yes
Inlet 1 Gsk. Eg24162
Inlet Type 3 bolt fixed
Number Of O2 Sensors 2
Outlet Type Slip fit
Over All Length 45
Use Davico Decarbonizing Induction Kit 1540ea Yes
Product line Dealer Alternative Exact-Fit Catalytic Converter
Fits Audi · 2 vehicles

Exact-fit design. Built from original equipment sample parts for proper fit and function.

OBDII catalyst. High-quality emissions-reducing catalyst for current emissions systems.

Gaskets included. Inlet gasket coverage is provided for the connection point.

$707.23Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $707.23
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dealer Alternative Exact-Fit Catalytic Converter

Davico 48312 is an exact-fit catalytic converter built from original equipment sample parts to match fitment and function on the vehicle. It uses a high-quality emissions-reducing catalyst for OBDII applications and includes gasket coverage for the inlet connection.

  • Exact-fit design based on original equipment sample parts.
  • Emissions-reducing catalyst formulated for OBDII vehicle demands.
  • 3-bolt fixed inlet and slip-fit outlet for direct exhaust connection.
  • Includes two O2 sensor provisions for the correct exhaust layout.
  • Fits 2002-2003 Audi A4 Quattro, left.

Detailed Fitment and Function

This catalytic converter is intended for 2002-2003 Audi A4 Quattro applications on the left side. Davico 48312 follows the Dealer Alternative Exact-Fit Catalytic Converter line, which focuses on OE-style fit and proper exhaust system function without changing the original layout. The 45-inch overall length, 3-bolt fixed inlet, and slip-fit outlet support a direct replacement installation where the original configuration matches these specifications.

This part cross-references no listed interchange numbers for the same application.

Common Issues It Can Address

  • Failed catalytic converter efficiency codes.
  • Restricted exhaust flow from a worn converter core.
  • Exhaust leaks at the inlet or outlet connection points.
  • Incorrect sensor-related exhaust readings from a deteriorated converter assembly.

Installation Notes and Quality

Verify the inlet style, outlet style, O2 sensor count, and overall length before installation. Use the specified Davico decarbonizing induction kit 1540ea when required by the application notes. Gaskets are included for the inlet connection. Davico Exact-Fit Catalytic Converters are engineered from OE sample parts to support proper fit and function on current OBDII vehicles.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
2003AudiA4 QuattroAWDManual3.0LV6LeftNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; Dealer Alternative; Dealer Alternative Exact-Fit Catalytic Converter
2002AudiA4 QuattroAWDManual3.0LV6LeftNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; Dealer Alternative; Dealer Alternative Exact-Fit Catalytic Converter