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3" Catless Downpipe for 2012–2015 Audi 2.0T Models
Upgrade the exhaust flow of your turbocharged Audi with the Flashark 3-inch catless downpipe. Designed for confirmed 2012–2015 Audi 2.0L turbocharged applications, this kit replaces the restrictive factory downpipe and catalytic-converter section directly after the turbocharger.
The larger, smoother exhaust path helps reduce backpressure and supports quicker turbo response, stronger exhaust flow and a deeper, more aggressive exhaust note. It is suitable for compatible Audi A3, A4, A5, A6, Q3, Q5, S3, TT, TTS and allroad applications listed in the Fitment section below.
Important: This is a catless downpipe. It does not contain a catalytic converter and may trigger a check-engine light or fail an emissions inspection.
Why Upgrade Your Audi Downpipe?
- Reduced exhaust restriction: The 3-inch free-flow design replaces the restrictive factory downpipe and catalytic-converter section.
- Improved turbo response: Freer exhaust flow can help the turbo reach target boost more efficiently.
- More aggressive exhaust sound: Expect a deeper exhaust note, increased volume under acceleration and more noticeable turbo sound.
- Supports performance builds: Suitable for compatible vehicles using professional ECU calibration and supporting modifications.
- Durable stainless-steel construction: Mandrel-bent tubing and TIG-welded joints provide strength and corrosion resistance.
- Integrated flex section: Helps absorb engine movement and reduce stress on exhaust connections.
Product Specifications
| Product Type | Catless Turbo Downpipe |
|---|---|
| Pipe Diameter | 3 inches |
| Material | T304 Stainless Steel |
| Construction | Mandrel-bent tubing with TIG-welded joints |
| Design | Two-piece downpipe and connector pipe |
| Flex Section | Braided flex joint |
| Oxygen Sensor | Integrated O₂ sensor bung |
| Catalytic Converter | Not included — catless design |
What’s Included?
- 1 × Catless downpipe section
- 1 × Connector pipe
- 1 × Exhaust clamp
Only the components shown in the product images are included. Factory gaskets, fasteners or additional exhaust adapters may need to be reused or replaced depending on the vehicle and the condition of the original exhaust system.
Installation Notice
This product is designed as a bolt-on replacement for the confirmed applications listed below. Installation requires removal of the factory downpipe, correct positioning of the oxygen sensor and proper alignment of the connector pipe with the remaining exhaust system.
Professional installation is strongly recommended. Before installation, compare the supplied pipe connections, mounting points, sensor-bung location and overall routing with the original downpipe. Modified vehicles or aftermarket exhaust systems may require an additional adapter or minor fabrication.
Emissions Notice
This product removes the factory catalytic-converter section and may not comply with emissions regulations for public-road vehicles. It is intended for off-road, track or competition use where permitted. The buyer is responsible for checking all applicable federal, state and local regulations before purchase and installation.
Confirmed compatible — selected 2012–2015 Audi models equipped with a 2.0L inline-4 turbocharged gasoline engine:
| Year | Make | Model | Drivetrain | Engine |
|---|---|---|---|---|
| 2012–2013 | Audi | A3 | FWD | 2.0L I4 Turbocharged |
| 2012–2013, 2015 | Audi | A3 Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | A4 | FWD | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | A4 Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2013–2015 | Audi | A4 allroad / allroad | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | A5 | FWD | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | A5 Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | A6 | FWD | 2.0L I4 Turbocharged |
| 2013–2015 | Audi | A6 Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2015 | Audi | Q3 | FWD | 2.0L I4 Turbocharged |
| 2013–2015 | Audi | Q3 Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | Q5 | As originally equipped | 2.0L I4 Turbocharged |
| 2012, 2014–2015 | Audi | S3 | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2014 | Audi | TT | FWD | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | TT Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
| 2012–2015 | Audi | TTS Quattro | AWD / Quattro | 2.0L I4 Turbocharged |
Fitment notes:
- Only fits the confirmed years, models and 2.0L turbocharged gasoline applications listed above.
- Quattro fitment applies only to models specifically identified as Quattro or AWD in the table.
- Fitment is determined by year, model, engine and original exhaust configuration—not trim name alone.
- Use the vehicle selector before ordering and compare the product connections with the original downpipe.
- If your vehicle has a replacement turbocharger or custom exhaust system, additional adjustment may be required.
Does not fit:
- Audi models or years not listed in the table
- 1.8L, 2.5L, 3.0L, 3.2L, 4.0L or other engine sizes
- Naturally aspirated engines
- TDI diesel engines unless separately confirmed by Flashark
- Audi S4, S5, S6, RS models or other non-listed performance models
Q: Which Audi models does this catless downpipe fit?
A: This kit fits selected 2012–2015 Audi A3, A4, A5, A6, Q3, Q5, S3, TT, TTS and allroad models equipped with a confirmed 2.0L inline-4 turbocharged gasoline engine. Fitment varies by model and year, so check the complete Fitment table and use the vehicle selector before ordering.
Q: Does this downpipe fit Audi Quattro models?
A: Yes, it fits the Quattro applications specifically listed in the Fitment table, including selected A3 Quattro, A4 Quattro, A5 Quattro, A6 Quattro, Q3 Quattro, TT Quattro and TTS Quattro models. A Quattro badge alone does not confirm fitment—the year, model, engine and original exhaust configuration must also match.
Q: Does it fit every Audi with a 2.0T engine?
A: No. Audi used different engines, turbocharger connections, chassis layouts and exhaust configurations across different models and years. Only order this product if your exact year and model appear in the Fitment table.
Q: Does this downpipe fit Audi TDI diesel models?
A: This Audi-specific page is intended for confirmed 2.0T gasoline applications. Do not order it for a TDI diesel model unless Flashark support separately confirms compatibility using your vehicle information or VIN.
Q: Is this a catless or catted downpipe?
A: This is a catless downpipe. It does not contain a catalytic converter and replaces the factory downpipe and catalytic-converter section. A high-flow catalytic converter is not included.
Q: Will this downpipe cause a check-engine light?
A: It may. Removing the factory catalytic converter can cause the ECU to detect reduced catalyst efficiency and store an emissions-related fault code. Flashark does not guarantee that the product will operate without a check-engine light on every Audi application.
Q: Do I need an ECU tune after installation?
A: An ECU tune is not physically required to install the downpipe, but compatible calibration may be recommended to optimize performance after changing exhaust flow. Tuning requirements vary by engine version, ECU software, turbocharger and supporting modifications. Consult a qualified Audi or Volkswagen Group tuner before installation.
Q: How much horsepower will this downpipe add?
A: There is no single guaranteed horsepower increase. Results depend on the engine version, turbocharger, ECU calibration, fuel, intake, intercooler and the rest of the exhaust system. The 3-inch catless design primarily reduces exhaust restriction and supports improved turbo response and tuned performance.
Q: How will it change my Audi’s exhaust sound?
A: Expect a deeper and louder exhaust note, more noticeable turbo sound and increased volume under acceleration. The exact result depends on the Audi model and whether the vehicle uses the factory or an aftermarket cat-back exhaust. A catless system can also produce more exhaust odor.
Q: Will this product pass emissions testing?
A: It may not. This product removes the factory catalytic converter and can fail a visual, tailpipe or OBD-II emissions inspection. It is intended for off-road, track or competition use where permitted. Check applicable regulations before purchase and installation.
Q: Is this a direct bolt-on downpipe?
A: It is designed as a bolt-on replacement for the confirmed applications. Installation still requires removal of the factory downpipe, correct positioning of the oxygen sensor and proper alignment with the remaining exhaust system. Vehicles with aftermarket turbochargers, custom exhausts or previously modified piping may require an adapter or additional fabrication.
Q: Will it connect to the factory exhaust system?
A: The included connector pipe is designed to connect the downpipe to the original exhaust layout on the confirmed applications. If the vehicle has an aftermarket cat-back, custom piping or a different turbocharger, compare the connection diameter and layout before installation.
Q: What is included in the package?
A: The package includes one catless downpipe section, one connector pipe and one exhaust clamp. Only the components shown in the product images are included. Replacement factory gaskets or fasteners are not included unless specifically pictured.
Q: Can I install this downpipe myself?
A: Installation is possible for an experienced technician with suitable lifting equipment and exhaust-system tools. Because turbocharger access and underbody clearance vary between Audi models, professional installation is strongly recommended. Inspect the completed system for leaks, rattles and contact with surrounding components.
Q: Can I return it after attempting installation?
A: Returns generally require the product to remain new, uninstalled and in its original packaging. Compare the supplied downpipe with the original part and confirm vehicle fitment before beginning installation. Review Flashark’s current return policy for complete eligibility requirements.
Fast Shipping Policy
Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 30-day free return, provided the item is brand new, uninstalled, and in its original packaging. We cover return shipping for quality issues. Refunds are processed within 3-5 business days. Click for Return Policy
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