Vorsprung Catless Downpipe, Audi EA825 C8 RS6, RS7 & D5 A8, S8 4.0T V8
Built for Real Power, Without the Compromises - Tested and validated to deliver reliable performance without concern for premature failure.
This is the fully catless version of this downpipe — the factory catalytic converters are completely removed for maximum, unrestricted exhaust flow. Need to keep your cats for emissions compliance or a quieter, CEL-free daily driver? See our High-Flow Catted Downpipe instead.
Catless vs. Catted — At a Glance
| This Product: Catless | High-Flow Catted | |
|---|---|---|
| Catalytic converters | None — fully open | 200-cell or 400-cell metallic |
| Check Engine Light | Likely without a supporting tune | Designed to run CEL-free |
| Street legal / emissions | Off-road / competition use only | Built toward Euro 6 / EPA compliance |
| Best for | Track cars, heavily tuned builds | Daily-driven, tuned street cars |
Off-Road / Competition Use: Removing the factory catalytic converters will likely trigger a Check Engine Light without a supporting ECU tune, and takes the vehicle out of compliance with street emissions laws in many states and countries. Please check your local regulations before installing, and pair this downpipe with a tune to manage fueling and CEL codes.
Once you move past a basic tune on the 4.0T, you're asking a lot more from the factory cats, and honestly, they just can’t keep up. We’ve seen it time and time again: stock converters break down under the extra heat and pressure, and when they do, the risk isn’t just poor performance, it’s engine damage.
We decided to build something better. Something we’d actually run on our own cars, and trust over the long haul.
Engineered for Endurance
We understand that a lifetime warranty offers little value if you're frequently dealing with the inconvenience and expense of part replacement and reinstallation labor. At Vorsprung Autowerk, our focus isn't just on warranty duration; it's on product longevity and reliability.
Performance, Reliability, and Thoughtful Design
- Full flow path from top to bottom, with no tapering down to OEM size
- Smooth transition to OEM-style lower flanges for easy fitment
- Vorsprung reinforced flange design
- Precision TIG-welded and back-purged for maximum strength
- Double-walled pipe ends to resist cracking over time
- Extra-thick 10mm stainless flanges, reinforced inside and out to prevent warping and treated for an ultra-smooth mating surface
- Heat shielding included to control temps, reduce heat soak, and protect nearby components
- 304L stainless steel construction (Vorsprung Spec 2.0mm wall thickness) throughout, built to last
Please note: These are made to order. Delivery times are approximately 30 days.
Why Buy From Us?
-
✅
Enthusiast Designed & Tested: Developed by people who actually drive and modify these cars.
-
✅
Tested on Our Own Cars: If we wouldn't run it ourselves, we don't sell it.
-
✅
Continuous R&D: We continually develop and improve our products instead of relying on generic catalog parts.
-
✅
Supporting Audi Platform Development: Your purchase helps fund continued development of new parts for these chassis.
-
✅
Real Enthusiast Support: Get help from people who understand the platform, not ticket bots.
-
✅
Small Team, Big Passion: Every order directly supports continued product development and innovation.
-
✅
Performance Without the Marketing Fluff: Purpose-built parts designed to perform.
Precision Forged Custom Wheels
At Vorsprung Autowerk, we offer the perfect blend of strength, performance, and style with our custom wheels. Crafted using the finest materials and advanced engineering techniques, our wheels are built to enhance your vehicle's handling and aesthetics.
Key Features
- Monoblock or Multipiece Design
- Custom Spoke Design
- Perfect Fitment Guaranteed
- Multiple Color & Finish Options
- Aircraft-Grade 6061 Aluminum
- Precision Forged for Durability
Frequently Asked Questions (FAQ)
What types of products do you offer?
We offer a wide range of high-performance automotive parts including engine components, suspension upgrades, fueling solutions, and custom wheels, all designed to enhance your vehicle’s performance.
Are your products compatible with all car models?
Our products are specifically designed for high-performance vehicles, including luxury and sports cars like Audi. For compatibility details, please refer to the product description or contact our support team for assistance.
How can I ensure the correct fit for my car?
We offer guided fitment assistance for all our products. If you're unsure, feel free to reach out to our customer support team, and we'll help you find the perfect fit for your vehicle.
Do you offer international shipping?
Yes, we ship internationally. Shipping charges may vary depending on your location. You can view the estimated shipping cost at checkout.
How do I install the products?
Most of our products come with easy-to-follow installation guides. Additionally, if you need professional installation, we can recommend certified mechanics or shops for assistance.
What is your return policy?
We offer a 14-day return policy for unused products. To be eligible for a return, items must be in their original packaging and in resellable condition. Please refer to our return policy page for detailed instructions.
How can I contact customer support?
You can contact our customer support team via email at orders@vorsprungautowerk.com or through our live chat feature available on the website.
