034 Motorsport Stainless Steel Racing Catalyst for BMW F2x/F3x B58 Vehicles (2012-2020)
034 Motorsport Stainless Steel Racing Catalyst for BMW F2x/F3x B58 Vehicles (2012-2020)
TAG Motorsports is pleased to offer the 034 Motorsport Stainless Steel Racing Catalyst for the BMW F2x/F3x B58 Vehicles.
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 Euro4 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 Euro4 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.
034Motorsport part number: 034-105-4051
Fits: 2014-2020 BMW 2 Series (F2X) M240i; 2012-2019 BMW 3 Series (F3X) 340i; 2012-2019 BMW 4 Series (F3X) 440i
***FOR OFF ROAD USE ONLY - TAG IS NOT LIABLE FOR ANY CITY/STATE/FEDERAL ISSUES CAUSED BY PURCHASING OR INSTALLING THIS PRODUCT***
EMISSIONS NOTICE - NOT CARB LEGAL
This product does not have a California Air Resources Board (CARB) Executive Order (EO) number. Not legal for sale or use in California, or in any state that has adopted California emissions standards, and not legal for use on any pollution-controlled motor vehicle operated on public roads.
Note: For off-road / competition use only, not intended for use on public highways. It is the buyer's responsibility to know and follow the emissions and noise laws where the vehicle is registered and driven.
| SKU | 034-105-4051 |
|---|---|
| Brand | 034 Motorsports |
| Exhaust Tip Size | 90mm |
PROP65 WARNING

PROP 65 WARNING – Products sold by TMS such as lead acid batteries contain lead, which is known to the
state of California to cause cancer and birth defect or other reproductive harm. Safety Data Sheets for
products sold by TMS are available upon request.
For more information go to:
www.p65warnings.ca.gov/fact-sheets/lead-and-lead-compounds
| Many Items Are In-Stock. Up-to 2-4 Weeks for Items Not In-Stock. |
