SKU: 66204183538

034 Motorsport Stainless Steel Racing Catalyst - BMW / F2x / F3x / B58

Sale price$750.38 Regular price$833.76
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

034 Motorsport Stainless Steel Racing Catalyst - BMW / F2x / F3x / B58PRODUCT DESCRIPTION: The 034Motorsport Stainless Steel Racing Catalyst for BMW F2x F3x B58 Vehicles is designed as a drop in replacement for the restrictive factory catalytic converter. The Stainless Steel Racing Catalyst offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note. This upgrade eliminates the primary flow limitation in the factory exhaust system,


PRODUCT DESCRIPTION:

The 034Motorsport Stainless Steel Racing Catalyst for BMW F2x/F3x B58 Vehicles is designed as a drop-in replacement for the restrictive factory catalytic converter. The Stainless Steel Racing Catalyst offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note. This upgrade eliminates the primary flow limitation in the factory exhaust system, allowing you to maximize the potential of your turbocharged engine.

Optimized for increased flow and maximum performance, the Stainless Steel Racing Catalyst features a Euro 4 racing catalytic converter in the factory location. This complete drop-in solution includes an integrated v-band flange at the turbine outlet, integrated oxygen sensor bung after the catalyst, and a complete gasket/hardware kit to allow for precise fitment and ease of installation. The Stainless Steel Racing Catalyst for BMW F2x/F3x vehicles is constructed from 304 stainless steel for maximum durability and corrosion resistance, is TIG-welded, and includes an integrated OE style heat isolation barrier to minimize exhaust heat transferred into the engine bay.

034Motorsport's Stainless Steel Racing Catalyst was developed entirely in-house on 034Motorsport's Development F30 BMW 340i utilizing the latest in 3D Scanning Technology, CAD Software, and Rapid Prototyping Techniques. Final production units were then tested extensively on track in B58 vehicles before release.

FEATURES:

  • Increased Horsepower & Torque Throughout the Powerband
  • Quicker Turbocharger Spool & Faster Transient Response (150-300 RPM Quicker Spool)
  • Enhanced Exhaust Note & Turbocharger Sounds
  • Direct, Bolt-In Upgrade for Factory Catalytic Converter
  • Engineered In-House by 034Motorsport's Engineering Team
  • Factory-Location Euro 4 Racing Catalytic Converter
  • 304 Stainless Steel Construction with Integrated Inlet/Outlet Flanges & O2 Sensor Bung
  • Precision CNC-Machined Flange Mating Surfaces
  • OE Style Isolating Flex Section
  • OE Style Heat Isolation Barrier
  • TIG Welded & Backpurged

WHAT’S INCLUDED:

  • Stainless Steel Racing Catalyst
  • New V-Band Gasket

FITMENT:

  • F30 340i/340iX (2014-2019)
  • F31 340i/340iX (2014-2019) (Euro Only)
  • F32 440i/440iX (2015-2019)
  • F33 440i/440iX (2015-2019)
  • F34 340i GT/ 340iX GT (2015-2019)
  • F36 440i/440iX (2015-2019)
  • F22 M240i/M240iX (2016-2020)
  • G11/G12 740i / 740iX / 740Li (2014-2019)
  • G20 M340i/ M340iX (2018-2019)
  • G29 Z4 M40i (2018-2019)

EMISSIONS DISCLAIMER:

This product is sold for racing use as well as use on vehicles not registered for on highway use.

By purchasing this product, you understand that this product is sold for racing use as well as used on vehicles not registered for on highway use, and that it is not legal for use on highway or street vehicles.

This catalyst requires a Stage 2 Racing Use Only Remap to eliminate any check engine lights due to removal of the factory catalyst.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66204183538

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A. Walther
New York, US
★★★★★ 4
Get lots of compliments.
Size: X-Large, Color: Blue
These are awesome! I get lots of compliments. I took out the string/rope belt and just wear a regular belt because the rivets look cheap but it works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
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Neva
Phoenix, US
★★★★★ 5
I got ripped off
Size: Large, Color: Blue
Loops were missing for belt. I returned for a different pair hoping it was a defect. Received another with the same problem. The denim ones have 6 loops. The white have only 4. So impossible to loop correctly. After I received the second pair they charged me for the ones I returned. So I paid for 2 pairs only kept one
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Reviewed in the United States on February 15, 2026
M
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Midwest Mama
Carnegie, US
★★★★★ 2
High waisted, heavy duty, no stretch jeans
Size: X-Large, Color: Blue
I liked them, except they were high waisted which are not a good look for me.
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Reviewed in the United States on May 13, 2026
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Kristen Noelle
Alexandria, US
★★★★★ 5
Cute, comfortable and stylish jeans
Size: Small, Color: Blue
These jeans are so cute! They are on the thicker, stiffer size. I got a lot of compliments on the patchwork jeans. They did arrive with a very strong sort of chemical odor. I washed twice before I wore them.
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Reviewed in the United States on May 15, 2025
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jean
Dallas, US
★★★★★ 5
Very cute, but too big for me.
Size: Small, Color: Blue
Very cute, great quality but too big for me. Had to return. For reference I’m 4’11’’ & 105lbs
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Reviewed in the United States on May 27, 2025

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