Save 9%
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 1
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 1
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 2
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 2
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 3
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 3
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 4
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 4
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 1
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 2
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 3
Davico Mfg Catalytic Converter P/N:18257 Fits: BMW 325ci 06-01, BMW 325i 05-01, BMW 325xi 05-01, BMW 330ci 06-01, BMW 330i 05-01, BMW X3 06-04, BMW Z3 02-01, BMW Z4 05-03 Image 4

Davico Catalytic Converter P/N:18257

2001 - 2006 BMW 325 / 330 / X3 / Z3 / Z4 Replacement Catalytic Converter

$404.34 $444.95 /
Subscription -
  • High-quality catalysts resolve codes and pass emissions tests
  • Exact fit for a fast and straightforward install
  • Fits BMW 325Ci models from 2001 to 2006, BMW 325i and 325xi models from 2001 to 2005, BMW 330Ci models from 2001 to 2006, BMW 330i models from 2001 to 2005, BMW X3 models from 2004 to 2006, BMW Z3 models from 2001 to 2002, and BMW Z4 models from 2003 to 2005
  • Manufactured in the USA
Checking Fitment...
Determining if this part fits your vehicle
Perfect Fit Confirmed!
This Product Does Not Fit
No Fitment Selected
Add your vehicle to verify product compatibility
In stock
Part will likely ship same day

Lightning Fast Shipping

Premium Quality

Resolve Check Engine Codes

Install Without Guesswork

We stock direct-fit converters that match factory specs - all flanges, brackets, and sensor ports line up. No cutting, welding, or modifying.

Pass Emissions and Resolve Codes

High-quality catalysts and washes resolve error codes and pass strict emissions test standards.

Built to Last

High-grade catalysts and premium wash coatings for optimal performance and longevity.

Recently viewed