BMW Catalytic Converters for BMW 3 Series G20 (2019+)

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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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Universal Catalytic Converter - 2.25"
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Emico - Corporate Logo
T#:23152011
Part#: 602205
In Stock
$ 97.99 USD
Free Shipping on orders $49 and up
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 3.0...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:27838480
Part#: 18328612537KT4
In Stock
$ 110.99 USD
Free Shipping on orders $49 and up
Prevent engine issues and error codes caused by exhaust leaks with the correct installation of components using appropriate gaskets and hardware.
CTS Turbo High Flow Catted Downpipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:18932307
Part#: EXH-DP-0037-CAT
Ships in 3 Business Days
$ 429.99 USD
Free Shipping
$ 429.99 USD
Free Shipping
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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Active Autowerke AFlow Catted Downpipe - B58N G20/G22 M340/M440i ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2025+ model year vehicles -- Please call in with vin prior to purchase
Active Autowerke - Corporate Logo
T#:51426483
Part#: 11-062GA
Ships in 10 Business Days
New Item
$ 1,899.00 USD
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$ 1,899.00 USD
Free Shipping
Active Autowerke brings professional-grade emissions technology to the 2025+ BMW G-Chassis with the AFlow Catted Downpipe. This system utilizes the advanced Active AFlow Super High Output Catalytic Converter, which is EPA registered and 49-state legal. By employing an ultra-high-flow 400 Cell Per Square Inch (CPSI) substrate, this downpipe provides the flow characteristics of a race-pipe while maintaining full OBD2 compliance. The catalyst is designed to reach operational efficiency within just 9 seconds of startup, ensuring that emissions standards are met quickly. This is the premier choice for enthusiasts seeking a refined exhaust note and increased power without the raw fuel smell or environmental concerns of a catless system. Key Features: Active AFlow 400 CPSI Catalyst: High-density 304 stainless steel substrate furnace-brazed to the mantle for extreme durability under high boost. Rapid Light-Off Time: Achieves operational efficiency within approximately 9 seconds of engine start. Forced Induction Optimized: Specifically rated to handle high-boost applications with zero loss in horsepower. Thermal Management: Engineered to withstand internal exhaust gas temperatures (EGTs) up to 1500°F. Environmentally Conscious: Effectively reduces harmful emissions and noise, protecting both passengers and the ecosystem. Specifications: Vehicle Fitment: 2025+ BMW M340i and M440i (G20/G22 Chassis). Catalyst Cell Density: 400 Cells Per Square Inch (CPSI). Catalyst Substrate: Full 304 Stainless Steel. Warranty: 5-Year/50,000-Mile on shell/ends; 2-Year/25,000-Mile on the catalytic core (Voided by "excessive burble" tunes). Compliance: EPA Registered / 49-State Legal (Not CARB registered for California).
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RP GAS.PARTICULATE FILTER W.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:45312833
Part#: 18309454950KT
Ships in 9 Business Days
$ 3,816.99 USD
Free Shipping on orders $49 and up
This includes a Core Charge of $715.00!

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