have questions?
No Duties or Brokerage
We know our products
Always the correct part
Free shipping over $499
034Motorsport is proud to introduce the all-new Cast Stainless Steel Racing Catalyst for B9 Audi A4/A5 & 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 & 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.
These Performance Comparisons were performed using an in-house 2017 Audi A4 2.0 TFSI with development Performance Software and 91 Octane fuel.
| 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 vs. Factory Catalyst | 22 HP @ 5,650 RPM | |
| Peak TQ Gains vs. Factory Catalyst | 22 FT-LBS @ 2,850 RPM |
| Make | Model | Years | Chassis | Engine |
|---|---|---|---|---|
| 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.
 |
The installation of your Cast Stainless Steel Racing Catalyst, B9 Audi A4/A5 & Allroad 2.0 TFSI is a relatively complex process that will take approximately one hour to complete. You can access our detailed installation guide by clicking the icon on the left.
|
When Will This Ship?
Please confirm availability on the products page...
In Stock This product will ship within one business day. Available for local pickup in Québec, Canada.
Direct Ship Subject to supplier' stock. Orders typically ship within 2 to 3 business days.
Regularly Stocked Product This product is in stock from our supplier. Orders typically ship within 6 to 12 business days.
Warehouse Transfer Subject to supplier' stock. Orders typically ship within 6 to 12 business days.
On Order This item is on its way to our warehouse.
Back Order This part is back-ordered therefore shipping time will vary.
No Longer Available The manufacturer no longer sells this item, and we can no longer get it from any of our suppliers.
*The processing time and availability are subject to the suppliers’ stock.
Need it faster?
Feel free to reach out before placing your order if you need it faster or require further assistance! 😊
Free Shipping
All orders of $499 or more being shipped within Canada qualify for free standard shipping. Additionally, orders less than $499 qualify for an exclusive low shipping rate.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
In-Stock Products
In Stock
Items marked as "In Stock" are physically in our facility, so they're ready to ship when the order is placed. If all items in your order are "In Stock", then your order typically ships within one business day.
Other Availability Modes
We use several availability modes to most accurately identify when products will leave their home facility:
Direct Ship This product is available and will be sourced from one of our suppliers. It may take up to three business days before it ships.
Warehouse Transfer We receive the item, then we ship it to remain on time with the guaranteed delivery range chosen at checkout. It typically takes between 6 and 12 business days before it ships.
Discontinued - No longer available This product has been discontinued by the manufacturer and is no longer available.
We update our catalog daily to provide the most accurate fitment information possible. When shopping for parts, please use the “select your vehicle” car selector on the home page. Once you've selected your car, you can filter parts specific to it.
Additionally, on each product page, we have a tab for fitment information. By clicking on "Fitment", you can scroll and verify the part you are about to add to your cart indeed fits.
Furthermore, if you have a vehicle added to our vehicle selector and you are viewing a product page, you'll see fitment information below the "add to cart" button. If an item fits your car it will display "This Part Fits Your: Selected Vehicule". If an item does not fit your vehicle a message will display "This Part Does Not Fit".
A “Core Charge” is similar to the deposit you might pay for a can or bottle of soda. In many states, to promote recycling, you are charged a deposit when you purchase a can of soda and you receive your deposit back when you return the empty can. Many automotive parts have Core Charges that work the same way as a soda can deposit. The most common car parts that include a core charge are alternators, calipers, steering racks, and fuel injectors.
"MAP" pricing, or Minimum Advertised Pricing, means that the vendor set a minimum retail price that we're not allowed to violate. MAP items cannot be discounted because the decrease in price would violate that threshold.
034Motorsport
034Motorsport is pleased to introduce the P34 Cold Air Intake System for B9 Audi A4/Allroad & A5! Significant effort went into developing this comprehensive performance intake...
034Motorsport
Significant effort went into developing this comprehensive performance intake solution for the turbocharged 2.0 TFSI engine found in the latest generation B9 Audi A4/Allroad & A5 2.0 TFSI...
034Motorsport
034Motorsport High-Flow Catalytic Converters are designed to replace the restrictive OE catalytic converter, and allow for quicker spool while increasing horsepower and torque throughout the...
034Motorsport
The 034Motorsport Res-X Resonator Delete unleashes a throaty growl that exudes the sound of performance and warns bystanders that this isn't your average 4-cylinder. The new aggressive exhaust note...
034Motorsport
The 034Motorsport Stainless Steel Racing Catalyst for B9 Audi S4/S5 is designed as a drop-in replacement for the restrictive factory catalytic converter. The Stainless Steel Racing Catalyst offers...
034Motorsport
034Motorsport is proud to offer our High Flow Silicone Turbo Inlet Hose for the B9/B9.5 Audi A4/A5 & Allroad 2.0 TFSI! This upgraded air intake hose is designed to replace the restrictive...
