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BMW Catalytic Converters

Our Catalytic Converters are the same quality construction as OEM but at a third of the cost! These are a direct replacement for the original BMW catalytic converter. These bolt on to your stock exhaust manifold and muffler, no welding required. We offer cats for both pre-OBDII BMW's (pre 1996) and BMW's with OBDII (1996+). We offer both 50 state legal converters and less expensive 49 state versions. Meets all EPA and CARB requirements. A factory warranty is included: 5 year/25,000 for 49 State versions, and 5 years/50,000 miles on 50 State legal versions.
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Genuine BMW - Corporate Logo
T#:45210342
Part#: 18328663515KT
Ships in 1-2 days
$ 4,718.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $2574.00!
Genuine BMW - Corporate Logo
T#:375960
Part#: 18301406813KT
Ships in 1-2 days
$ 4,386.99 USD
Free Shipping on orders $49 and up
Includes $50 core charge that will be refunded once we receive your rebuildable core.
Genuine BMW - Corporate Logo
T#:45312829
Part#: 18308624105KT
Ships in 1-2 days
$ 6,079.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $2574.00!

Genuine BMW - Corporate Logo
T#:45278701
Part#: 18308571006KT
Ships in 1-2 days
$ 3,947.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $715.00!

Genuine BMW - Corporate Logo
T#:45312831
Part#: 18308689367KT
Ships in 1-2 days
$ 6,255.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $2574.00!
Genuine BMW - Corporate Logo
T#:45278723
Part#: 18308588098KT
Ships in 1-2 days
$ 5,074.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $2574.00!

Genuine BMW - Corporate Logo
T#:377512
Part#: 18307848117KT
Ships in 1-2 days
$ 10,226.99 USD
$ 10,226.99 USD

If your vehicle's catalytic converter has failed, this remanufactured exhaust manifold is the cure. Clear that check engine light and pass emissions tests with flying colors!

This is a remanufactured exhaust manifold that includes a $50.00 refundable core charge.

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Magnaflow - Corporate Logo
T#:189271
Part#: 24021-M
Ships in 7 Business Days
$ 1,140.00 USD
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$ 1,140.00 USD
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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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CTS - Corporate Logo
T#:18932307
Part#: EXH-DP-0037-CAT
In Stock
$ 429.99 USD
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$ 429.99 USD
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The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance. Product Details: Precisely designed and tested on a real car in the real world T304 stainless steel, TIG welded back-purged construction Replaces restrictive factory downpipe with high-flow 200 cell catalytic converter Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust The use of stage 2 software is strongly recommended to avoid the CEL from coming on.
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Magnaflow - Corporate Logo
T#:373536
Part#: 49758
Back Ordered
$ 941.00 USD
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$ 941.00 USD
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If you are experiencing pulsating brakes, grinding, or have ridges on your rotors, it’s time to consider replacements. These rotors are slotted to ensure optimum stopping power by allowing for better evacuation of heat and gases. Black zinc plating also ensures quality and great looks for a long time to come. When doing a brake job, be sure to inspect the calipers, pads and brake lines for signs of wear. We carry a wide variety of brake pads for the daily driver or for the performance motorist.
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Magnaflow - Corporate Logo
T#:27938424
Part#: 52257
Ships in 1 Business Day
$ 1,232.00 USD
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$ 1,232.00 USD
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Supersprint Stepped Section 1 Straight Pipe - 63.5mm to 60mm - E85/E8...
Required for Supersprint 63.5mm Header Installation
Supersprint - Corporate Logo
T#:178005
Part#: 044912
Back Ordered
$ 1,027.99 USD
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$ 1,027.99 USD
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Free ground shipping! 

These Supersprint section 1 straight pipes are designed to follow the larger pipe sizing of the Supersprint stepped headers. With straight pipes and headers, there will be no cats in the system, making this perfect for race or track-only cars. The straight design will be louder and let more of the S54 rasp to come through. With headers and the Supersprint race mufflers the sound is simply intoxicating. You can use this section with any other section 2 pipe and muffler.

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

 

section:section 1

connects to:Supersprint stepped header; any section 2

material:T304 stainless steel

 

This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to Turner Motorsport. You can download the waiver here.



This item fits the following BMWs:
2006-2008 E85 E86 BMW Z4 M Roadster M Coupe

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Magnaflow - Corporate Logo
T#:375488
Part#: 50407
Back Ordered
$ 1,383.00 USD
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$ 1,383.00 USD
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Upgrade your BMW's exhaust system with the BMW E6X Direct-Fit Catalytic Converter - Left. This high-quality catalytic converter is designed specifically for BMW E6X models, ensuring optimal emissions control and performance. Engineered to OE standards, it guarantees a perfect fit and seamless installation, making it an ideal choice for replacing worn-out or damaged catalytic converters. With its durable construction and efficient emissions reduction capabilities, this converter restores your BMW's exhaust efficiency and helps maintain environmental compliance.

  • Direct-fit design for easy installation
  • Ensures optimal emissions control
  • OE specifications for perfect fit and performance
  • Durable construction for long-lasting reliability
  • Restores exhaust system efficiency

Upgrade your BMW E6X with the Direct-Fit Catalytic Converter - Left for enhanced emissions control and performance.

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Magnaflow - Corporate Logo
T#:375498
Part#: 50408
Back Ordered
$ 1,315.00 USD
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$ 1,315.00 USD
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BMW E6X Direct-Fit Catalytic Converter - Right is an essential replacement part designed to restore exhaust system efficiency in BMW E6X series vehicles. This direct-fit catalytic converter ensures compliance with emissions standards while optimizing engine performance. Engineered for durability and precise fitment, it eliminates exhaust leaks and reduces harmful emissions, maintaining environmental friendliness. Ideal for BMW owners seeking reliable replacement parts to restore vehicle performance and compliance.

  • Restores exhaust system efficiency in BMW E6X vehicles
  • Direct-fit design ensures easy installation and precise fitment
  • Eliminates exhaust leaks and reduces harmful emissions
  • Engineered for durability and long-lasting performance
  • Complies with emissions standards for environmental friendliness
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Magnaflow - Corporate Logo
T#:384381
Part#: 50416
Back Ordered
$ 1,042.00 USD
Free Shipping
$ 1,042.00 USD
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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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AFE - Corporate Logo
T#:584535
Part#: 47-46304
Back Ordered
20% off MSRP $ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD
20% off MSRP
$ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD
Keep your emissions in check

Magnaflow - Corporate Logo
T#:375526
Part#: 50415
Back Ordered
$ 1,156.00 USD
Free Shipping
$ 1,156.00 USD
Free Shipping
The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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Magnaflow - Corporate Logo
T#:26038564
Part#: 5531718
Back Ordered
$ 1,247.00 USD
Free Shipping
$ 1,247.00 USD
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Ensure your BMW's emissions are within regulatory standards with a replacement catalytic converter. Designed to convert exhaust gases into less toxic substances, this stainless steel converter is essential for maintaining environmental compliance. Whether you're experiencing oxygen sensor faults or failed emissions tests, this replacement part provides peace of mind and legal compliance. Formulated for both gas and diesel applications, it meets federal emissions standards and California Air Resource Board requirements.

Benefits:

  • Stainless steel construction for durability
  • Federal emissions compliant design
  • Suitable for gas and diesel applications
  • Meets California Air Resource Board requirements
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Magnaflow - Corporate Logo
T#:26005257
Part#: 52237
Back Ordered
$ 1,229.00 USD
Free Shipping
$ 1,229.00 USD
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Ensure your BMW meets emissions standards with a reliable catalytic converter replacement. Engineered with stainless steel construction and a Federal Emissions compliant design, this converter effectively reduces harmful exhaust emissions. Say goodbye to worries about failing an emissions test and enjoy peace of mind on the road.

  • Reliable replacement for faulty or damaged catalytic converters
  • Stainless steel construction for durability
  • Federal Emissions compliant design ensures legality
  • Suitable for both gas and diesel applications
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Supersprint - Corporate Logo
T#:1308
Part#: 830602
Ships in 3 Business Days
$ 1,692.00 USD
Free Shipping
$ 1,692.00 USD
Free Shipping

Free ground shipping! 

high-flow catalytic converter; replaces the stock cat; bolts to Supersprint header 830601 and to aftermarket exhaust. When tuning the car for maximum horsepower, you have to remove the bottlenecks in the stock exhaust. This cat flows much better than stock, which makes it perfect for cars with a header and other major mods.

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

 

 


Applications:
2001-2006 MINI Cooper S R53
2005-2007 MINI Cooper S Cabrio R52

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Genuine MINI - Corporate Logo
T#:575018
Part#: R56SDOWNPIPEKT2
Ships in 1-2 days
$ 138.99 USD
Free Shipping
$ 138.99 USD
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Genuine MINI - Corporate Logo
T#:574332
Part#: 18407539134KT
Ships in 1-2 days
$ 3,317.99

This product was last offered at the strikethrough price on
03-05-2026

$ 3,295.99 USD
Free Shipping
$ 3,295.99 USD
Free Shipping