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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.

This category contains parts that fit the following chassis:

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Universal Catalytic Converter - 2.25"
Universal Catalytic Converter - 2.25"
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Emico - Corporate Logo
T#:23152011
Part#: 602205
In Stock
$ 97.99 USD
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$ 97.99 USD
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Enhance your BMW's performance with this OBD II compliant universal fit catalytic converter. This converter, devoid of O2 sensor bungs, ensures compatibility with various vehicles. However, please note that it's not a 50-state legal catalytic converter. For California residents, it's recommended to verify local laws pertaining to aftermarket catalytic converters.
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Genuine BMW Catalytic Converter / Downpipe Installation Kit - B58 3.0L
Genuine BMW Catalytic Converter / Downpipe Installation Kit - B58 3.0...
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Genuine BMW - Corporate Logo
T#:27838480
Part#: 18328612537KT4
In Stock
$ 110.99 USD
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$ 110.99 USD
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Prevent engine issues and error codes caused by exhaust leaks with the correct installation of components using appropriate gaskets and hardware.
Genuine BMW Holder - 18211709241 - E34
Genuine BMW Holder - 18211709241 - E34
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Genuine BMW - Corporate Logo
T#:48043
Part#: 18211709241
Ships in 4 Business Days
5% off MSRP $ 19.99

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

$ 18.99 USD
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5% off MSRP
$ 19.99

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

$ 18.99 USD
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Genuine BMW Holder -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M50

Genuine BMW Remanufactured Catalytic Converter - Cyl 5-8
Genuine BMW Remanufactured Catalytic Converter - Cyl 5-8
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Genuine BMW - Corporate Logo
T#:179902
Part#: 18327848150
Ships in 5 Business Days
$ 2,503.99 USD
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$ 2,503.99 USD
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Price includes a refundable $325.00 core charge.
Genuine BMW Screw Plug - M8x1mm
Genuine BMW Screw Plug - M8x1mm
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Genuine BMW - Corporate Logo
T#:39025522
Part#: 07119907133
Ships in 3 Business Days
6% off MSRP $ 17.99

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

$ 16.99 USD
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6% off MSRP
$ 17.99

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

$ 16.99 USD
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Replacement screw plug directly from BMW
Genuine BMW Remanufactured Catalytic Converter - Cyl 1-4
Genuine BMW Remanufactured Catalytic Converter - Cyl 1-4
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Genuine BMW - Corporate Logo
T#:179901
Part#: 18327848149
Ships in 5 Business Days
$ 4,518.99 USD
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$ 4,518.99 USD
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Price includes a refundable $2340 core charge.
Catalytic Converter Close To Engine - Z4
Catalytic Converter Close To Engine - Z4
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Genuine BMW - Corporate Logo
T#:215889
Part#: 18307647040
Ships in 6 Business Days
4% off MSRP $ 1,813.99

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

$ 1,732.99 USD
Free Shipping on orders $49 and up
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4% off MSRP
$ 1,813.99

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

$ 1,732.99 USD
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Genuine BMW Rp-Primary Catalytic Converter - Zyl. 1-3

This item fits the following BMW Chassis:
E89,

This item fits the following BMW Engines:
N54,N54T,

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RP GAS.PARTICULATE FILTER W.
RP GAS.PARTICULATE FILTER W.
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Genuine BMW - Corporate Logo
T#:45312833
Part#: 18309454950KT
Ships in 9 Business Days
$ 3,837.99 USD
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$ 3,837.99 USD
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This includes a Core Charge of $715.00!
Genuine BMW Catalyic Converter - E39 M5 - Left - 50 state legal
Genuine BMW Catalyic Converter - E39 M5 - Left - 50 state legal ...
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Genuine BMW - Corporate Logo
T#:375958
Part#: 18301406812KT
Ships in 9 Business Days
$ 4,384.99 USD
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$ 4,384.99 USD
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Includes $50 core charge that will be refunded once we receive your rebuildable core.
Rp-Catalytic Conv. With Center Muffler
Rp-Catalytic Conv. With Center Muffler
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Genuine BMW - Corporate Logo
T#:45312829
Part#: 18308624105KT
Ships in 9 Business Days
$ 6,079.99 USD
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$ 6,079.99 USD
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This includes a Core Charge of $2574.00!
Rp-Catalytic Conv. With Center Muffler
Rp-Catalytic Conv. With Center Muffler
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Genuine BMW - Corporate Logo
T#:45278727
Part#: 18308611915KT
Ships in 9 Business Days
$ 5,659.99 USD
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$ 5,659.99 USD
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This includes a Core Charge of $2574.00!
RP CATALYTIC CONVERTER W.CEN
RP CATALYTIC CONVERTER W.CEN
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Genuine BMW - Corporate Logo
T#:45312831
Part#: 18308689367KT
Ships in 9 Business Days
$ 6,255.99 USD
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$ 6,255.99 USD
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This includes a Core Charge of $2574.00!
Exch Catalytic Converter Close To Engine - Eu6
Exch Catalytic Converter Close To Engine - Eu6
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Genuine BMW - Corporate Logo
T#:45278687
Part#: 18307643423KT
Ships in 9 Business Days
$ 6,880.99 USD
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$ 6,880.99 USD
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This includes a Core Charge of $2574.00!
At-Diesel Particulate Filter - Eu6
At-Diesel Particulate Filter - Eu6
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Genuine BMW - Corporate Logo
T#:45278701
Part#: 18308571006KT
Ships in 9 Business Days
$ 3,947.99 USD
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$ 3,947.99 USD
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This includes a Core Charge of $715.00!
Genuine BMW Catalyic Converter - E39 M5 - Right - 50 state legal
Genuine BMW Catalyic Converter - E39 M5 - Right - 50 state legal ...
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Genuine BMW - Corporate Logo
T#:375960
Part#: 18301406813KT
Ships in 9 Business Days
$ 4,386.99 USD
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$ 4,386.99 USD
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Includes $50 core charge that will be refunded once we receive your rebuildable core.
Exchange Scr Catalytic Converter
Exchange Scr Catalytic Converter
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Genuine BMW - Corporate Logo
T#:45278723
Part#: 18308588098KT
Ships in 9 Business Days
$ 5,074.99 USD
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$ 5,074.99 USD
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This includes a Core Charge of $2574.00!
Exch Catalytic Converter Close To Engine - Zyl.7-12
Exch Catalytic Converter Close To Engine - Zyl.7-12
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Genuine BMW - Corporate Logo
T#:45210342
Part#: 18328663515KT
Ships in 9 Business Days
$ 4,718.99 USD
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$ 4,718.99 USD
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This includes a Core Charge of $2574.00!
At-Diesel Particulate Filter - Eu5
At-Diesel Particulate Filter - Eu5
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:45278709
Part#: 18308572808KT
Ships in 9 Business Days
$ 3,947.99 USD
Free Shipping on orders $49 and up
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$ 3,947.99 USD
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This includes a Core Charge of $715.00!
Exch Catalytic Converter Close To Engine - Cyl. 1-3
Exch Catalytic Converter Close To Engine - Cyl. 1-3
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Genuine BMW - Corporate Logo
T#:45312835
Part#: 18328053345KT
Ships in 9 Business Days
$ 4,652.99 USD
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$ 4,652.99 USD
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This includes a Core Charge of $2574.00!
Catalytic Converter Installation Kit - B58 3.0L
Catalytic Converter Installation Kit - B58 3.0L
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Packaged by Turner - Corporate Logo
T#:27238750
Part#: 18328612537KT2
Ships in 2 Business Days
Sale - Save 7% $ 103.99

This product was last offered at the strikethrough price on
03-10-2026

$ 96.69 USD
Free Shipping on orders $49 and up
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Sale - Save 7%
$ 103.99

This product was last offered at the strikethrough price on
03-10-2026

$ 96.69 USD
Free Shipping on orders $49 and up
Add to Wish List
Prevent engine issues and error codes caused by exhaust leaks with the correct installation of components using appropriate gaskets and hardware.

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