APWPART FINDER
My Vehicle Add New
  • Select Year
  • Select Make
  • Select Model
  • Select Submodel
  • Select Engine

Shop by Brand

BMW 525i Catalytic Converter

We have 10 Items In-stock. Select a year to continue.
$281.36 List Price $332.00 Save $50.64 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)

This Evan Fischer 49-State Legal (No CA) Direct Fit Catalytic Converter is manufactured from high quality and durable stainless steel catalytic case, 16-gauge aluminized steel tubes, and heat shield for long lasting durability and better protection for your vehicle. It also features honeycomb catalyst that has maximum surface area flow. OBD-II and EPA compliant catalytic converter; It is a high quality aftermarket replacement for the OEM catalytic converter. Designed for easy installation - it requires no cutting or welding!

Evan Fischer also offers comprehensive manifold converter assemblies for newer vehicle models!

  • OBD-II And EPA compliant catalytic converter
  • Requires NO cutting or welding
  • Honeycomb catalyst with maximum surface area flow
  • 49-State Legal, not for sale or use in California; cannot be shipped to California addresses
  • 2-year or 25,000-mile Evan Fischer warranty on converter and 5-year or 50,000-mile Evan Fischer warranty on another components
  • SKU#: REPB960301
  • Brand: Evan Fischer
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalytic Converter Type: Catalytic Converter with Exhaust Manifold
  • Warranty: 5-year or 50,000-mile limited warranty
 
Fits the following BMW 525i Years:
  • 2001-2003 | 6 Cyl 2.5L | Base
$76.20 List Price $89.92 Save $13.72 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
EASTERN CATALYTIC CONVERTER

World-class quality and innovation have made Eastern the best converter manufacturer in the business. 100% of Eastern's research and development efforts goes into making the finest aftermarket and original equipment catalytic converters on the market. Each Eastern catalytic converter uses advanced materials design which retains maximum engine output and maximizes catalytic efficiency. Eastern's proprietary NANO technology chemistry yields highly efficient loadings for lower cost and better converter efficiency.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: EAST70534
  • Brand: Eastern
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following BMW 525i Years:
  • 1989-1993 | 6 Cyl 2.5L | Base
$96.77 List Price $125.24 Save $28.47 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

  • SKU#: M6694008
  • Brand: Magnaflow
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 13.38 in. body length, 7 in. width, 17.38 in. overall length
(see more)
Fits the following BMW 525i Years:
  • 1989-1992 | 6 Cyl 2.5L | Base
Rating: (see review/s)

"That "check engine" lite is finally gone. Had O2 sensor put in with little modification." posted by: Jay on August 3, 2008

$415.19 List Price $489.92 Save $74.73 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)

Davico Catalytic Converter

Davico Manufacturing is committed to producing hard to find and specialized exhaust parts for the customer's satisfaction. Its catalytic converter is an example of the company's outstanding dedication.

Davico Catalytic Converter's design enables the conversion of harmful compounds into less dangerous gasses to help in pollution control without reducing its efficiency. Designed for many makes and models, this converter is easy to install.

Specifications:

  • Does not include gasket
  • Does not require sliding, cutting, clamping, or welding
Note: Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: DAV18273
  • Brand: Davico
  • Fit Note: mfrbodycodename : E60
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following BMW 525i Years:
  • 2006-2007 | 6 Cyl 3.0L | Base
$297.81 List Price $649.70 Save $351.89 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
CATCO CATALYTIC CONVERTER ASSEMBLY

Catco catalytic converters are designed with 409 stainless steel pipes and shell for longer life.

Specifications
  • 3-bolt flange welded inlet
  • 2-bolt flange with 45-degree flare pipe outlet
  • Standard assembly with one catalytic converter
  • Oval body
  • 66 in. overall length
  • 1.97 in. outlet diameter
  • 2-1 inlet and dual outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: CAT9072
  • Brand: Catco
  • Fit Note: Sedan, mfrbodycodename : E34, Federal And California Emission Vehicles, Sedan, mfrbodycodename : E34, To 3/95, Federal And California Emission Vehicles, Wagon, mfrbodycodename : E34, Federal And California Emission Vehicles, Wagon, mfrbodycodename : E34, To 3/95, Federal And California Emission Vehicles, mfrbodycodename : E34, Federal And California Emission Vehicles
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 66 in. overall length
(see more)
Fits the following BMW 525i Years:
  • 1991-1995 | 6 Cyl 2.5L | Base
View All
$130.53 List Price $319.19 Save $188.66 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
WALKER CATALYTIC CONVERTER, UNIVERSAL

Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and durability.

Features
  • Higher loaded substrate
  • Easy bolt-on installation
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: WK15021
  • Brand: Walker
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Dimensions: 18 in. overall length
  • Warranty: 5-year or 50,000-mile Walker limited warranty
 
Fits the following BMW 525i Years:
  • 1989-1995 | 6 Cyl 2.5L | Base
$275.11 List Price $324.63 Save $49.52 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
PACESETTER - CATALYTIC CONVERTERS

Replace your sub-par stock converter with a higher performing catalytic converter by Pacesetter Performance. Their converters are fabricated from the finest mandrel-bent stainless steel and feature perfect fit machined steel flanges. Pacesetter, known for their exhausts, has been a leading manufacturer of performance headers and exhaust systems since their inception in 1974.
  • Designed to replace poorly performing OEM converter
  • Streamlines and improves exhaust flow via honeycomb catalyst
  • Made from fine mandrel-bent stainless steel
  • Complies with EPA/CARB regulations
  • Bolts on for quick and easy installation (on most vehicles)
  • Backed by a 5-year/50,000-mile warranty
  • Direct fit by vehicle year, make and model
  • 49-state legal (not legal in CA)
  • Designed and manufactured in the USA
  • SKU#: P40757016
  • Brand: Pacesetter
  • Fit Note: Sedan, RWD
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: Factory replacement
(see more)
Fits the following BMW 525i Years:
  • 2001-2003 | 6 Cyl 2.5L | Base
$369.21 List Price $435.67 Save $66.46 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
BOSAL CATALYTIC CONVERTER

Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. Designed and built for long life reliability.

Specifications:
  • 2 oxygen sensor ports
  • Catalytic Converter with Exhaust Manifold
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: BO0961279
  • Brand: Bosal
  • Fit Note: Cylinders 1 to 3, 49 State Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Catalytic Converter Type: Catalytic Converter with Exhaust Manifold
  • Warranty: 5-year or 25,000-mile Bosal limited warranty
 
Fits the following BMW 525i Years:
  • 2001-2003 | 6 Cyl 2.5L | Base
$575.00 List Price $1,725.00 Save $1,150.00 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
BENCHMARK MANIFOLD CATALYTIC CONVERTER

Notes: Exhaust Manifold With Converter

Benchmark catalytic converters are considered to be the industry's standard replacement catalytic converter. It is the recognized leader in fitment and durability. It features perfect fit and repeatability and its performance results are continually monitored by Benchmark's internal emissions laboratory to insure quality loadings which eliminate OBDII issues caused by many universal catalysts.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: BEN1406R
  • Brand: Benchmark
  • Fit Note: E60
  • Quantity Sold: Assembly
  • Tube Material: Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalytic Converter Type: Catalytic Converter with Exhaust Manifold
  • Warranty: 5-year or 50,000-mile Benchmark limited warranty
 
Fits the following BMW 525i Years:
  • 2004-2005 | 6 Cyl 2.5L | Base
$554.92 List Price $654.81 Save $99.89 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
DORMAN CATALYTIC CONVERTER

When it comes to selecting the right manufacturer for your Exhaust Manifold, depend on Dorman. Exactly engineered just like the original product that came with your motor vehicle when it was freshly produced from the factory, Dorman's line of original equipment equivalent Manifold type catalytic converter gives fantastic fitting and solid performance. Each and every Dorman OE Replacement catalytic converter, in an effort to accomplish this feat, is designed after exacting industry standard. 49-state legal.

Specifications:
  • Steel
  • Includes gaskets and hardware
  • SKU#: RB674898
  • Brand: Dorman
  • Fit Note: Cylinders 4, 5 or 6, Combined Manifold And Converter Assembly, Not For Legal Sale in California
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalytic Converter Type: Catalytic Converter with Exhaust Manifold
  • Warranty: Lifetime Dorman limited warranty
 
Fits the following BMW 525i Years:
  • 2001-2003 | 6 Cyl 2.5L | Base
View Less