034Motorsport Cast Racing Catalyst for B9 Audi A4/A5/Allroad 2.0 TFSI
This is a Race-only product. By adding this product to your shopping cart, you are electronically acknowledging that this product is not to be installed on any registered vehicle that will be driven on any US road, street or highway. In addition, you also acknowledge that the use or installation of this product outside of the intended closed circuit racing purpose may be illegal under the Federal Clean Air Act (42 U.S.C. § 7522(A)(3))
To purchase this product, you must fill out and e-mail the form at the link below to sales@ngpracing.com. We cannot ship this product to you without a completed form.
034Motorsport is proud to introduce the all-new Cast Stainless Steel Racing Catalyst for B9 Audi A4/A5 and Allroad models equipped with the longitudinal 2.0 TFSI engine! Designed as a drop-in replacement for the restrictive factory catalytic converter, the Cast 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 Cast Stainless Steel Racing Catalyst features organic geometry and a massive 135mm diameter Euro 3 racing catalytic converter in the factory location. This complete drop-in solution includes an integrated 4-bolt flange at the turbine outlet, integrated oxygen sensor bung after the catalyst, integrated 3-bolt downpipe flange, and a complete gasket/hardware kit to allow for precise fitment and ease of installation. The Cast Stainless Steel Racing Catalyst for B9 Audi A4/A5 and Allroad is constructed from 304 stainless steel and TIG-welded for maximum durability and corrosion resistance. 034Motorsport's Cast Stainless Steel Racing Catalyst was developed entirely in-house on 034Motorsport's Development B9 Audi A4 utilizing the latest in 3D Scanning Technology, CAD Software, and Rapid Prototyping Techniques. Final production units were then tested extensively on multiple enthusiast-owned B9 Audi A4/A5, and Allroad vehicles before release.
Cast Racing Catalyst Features
- Increased Horsepower and Torque Throughout the Powerband (+ 22 HP / + 22 TQ Peak)
- Quicker Turbocharger Spool and Faster Transient Response (100-200 RPM Quicker Spool)
- Enhanced Exhaust Note and Turbocharger Sounds
- Direct, Bolt-In Upgrade for Factory Catalytic Converter
- Engineered In-House by 034Motorspor's Engineering Team
- Factory-Location 135mm Euro 3 Racing Catalytic Converter
- 304 Stainless Steel Construction with Integrated Inlet/Outlet Flanges and O2 Sensor Bung
- Precision CNC-Machined Flange Mating Surfaces
- TIG Welded and Backpurged with Sand-Blasted Titanium-Look Finish
What's Included
- 034Motorsport Cast Stainless Steel Performance Downpipe
- Integrated Euro 3 Racing Catalytic Converter
- Factory Turbocharger Outlet Gasket
- Factory Catalyst to Downpipe Gasket
- M10 Locknuts (4)
- M8 Locknuts (3)
- M8x30 Studs (3)
- Installation Guide
Factory Catalyst vs. 034 Race Catalyst - 91 Octane
| Factory Catalyst (91 Octane) | 034 Race Catalyst (91 Octane) | |
| Peak Horsepower | 280 HP | 300 HP |
| Peak Torque | 309 FT-LBS | 322 FT LBS |
| Peak HP Gains | 22 HP @ 5,650 RPM | |
| Peak TQ Gains | 22 FT LBS @2,850 RPM |
Supported Vehicles
- Audi A4 2017+ B9/B9.5 2.0 TFSI
- Audi A5 2018+ B9/B9.5 2.0 TFSI
- Audi allroad 2017+ B9/B9.5 2.0 TFSI
- Audi Q5 2018+ B9/B9.5 2.0 TFSI
- Note: Will not fit later B9.5 cars (2021+) with v-band turbo outlets.
Important: This racing catalyst requires a Stage 2 ECU Remap to eliminate any check engine lights due to removal of the factory catalyst.
Emissions Disclaimer
- This product is sold for off-road use only.
- This racing catalyst requires a Stage 2 ECU Remap to eliminate any check engine lights due to removal of the factory catalyst.
- By purchasing this product, you understand this product is sold for competition use and is not legal for use in highway or street vehicles.