ARMYTRIX Valvetronic Exhaust System for Type-42 Audi R8 (pre-facelift / V8) [AUR81S-C]
The ARMYTRIX Valvetronic Exhaust System for the Type-42 Audi R8 offers a remarkable combination of performance, sound, and cutting-edge technology. Engineered with Valvetronic technology, this system allows drivers to seamlessly switch between a refined, quieter mode and a thrilling, race-inspired exhaust note at the push of a button. Designed to enhance exhaust flow and boost horsepower, it maximizes the R8’s performance without compromising on torque. This system not only delivers significant power gains but also provides a stunning visual upgrade with its precision-engineered design, making it the perfect addition to the Audi R8 for drivers seeking the ultimate driving experience.
ARMYTRIX Valve Control Technology
- Effortless Sound Control with the Push of a Button: Users can easily switch between loud and quiet modes using the ARMYTRIX remote or smartphone app, giving them full control at their fingertips.
- Tailored Automatic Mode for Stress-Free Driving: The automatic mode operates the exhaust valves based on preset RPM ranges or turbo pressure, removing the need for manual adjustments. Users can also customize the automatic settings to match their individual preferences.
- Enhanced Power Without Sacrificing Torque: Depending on the vehicle’s setup and tuning, opening the valves allows exhaust gases to bypass the muffler for a freer flow. When the valves are closed, back pressure is retained at lower RPMs, ensuring torque is maintained—an issue often seen with straight-piped systems.
- Sleek ARMYTRIX Valve Control Remote: Featuring a clean, modern design with a high-gloss, piano-like finish, this remote offers style and functionality in one.
- 3 Modes:
- Smart mode
- Neighbor mode
- Beast mode
- Smart App Assistant: The ARMYTRIX mobile app connects via Bluetooth to the OBDII device, providing easy control of the exhaust valves. It also offers real-time monitoring of key metrics like RPM, speed, and fuel levels, with the ability to set the RPM value for automatic valve operation.
Features
- High-grade premium stainless steel
- Cutting-edge interactive valve control technology
- Plug-n-play module reduces installation time by 30%
- Ultra-high decibel output
- 3D-scans underbody of car for high precision
- Meticulously crafted for precise fitment
- Multiple precision mechanical polishing techniques result in a surface with craftsmanship-level brilliance
- Includes fault code clearing mechanism (reduces chances of check engine light)
- Direct bolt-on
- App controlled valve system via OBDII port
Specifications
What’s Included
- X-pipe mufflers
- Valvetronic tailpipe section
- Wireless remote control kit
Other Exhaust Versions
Applications
- Audi R8: Type-42 (2007-2012) – 4.2L V8
Notes
- Only compatible with pre-facelift models (2007-2012) with a V8
- Fits coupe & spyder
- V.I.N. required to confirm fitment
- ARMYTRIX OBDII Control Module is required, and the OEM valvetronic control can be integrated
About ARMYTRIX
ARMYTRIX embodies the philosophy of equipping vehicles with the most advanced exhaust system technology, challenging conventional notions of performance driving. Adhering to the creed of achieving maximum power, superior sound, and true versatility, ARMYTRIX builds unparalleled valvetronic exhaust systems. This commitment is fostered by a culture of perseverance and innovation. ARMYTRIX not only creates exhausts but also creates experiences. Combining the expertise of German and Japanese engineers, ARMYTRIX stands as a beacon of revolutionary design and masterful manufacturing. Recognized as one of the top producers of high-end performance exhaust systems in the automotive aftermarket industry, ARMYTRIX acknowledges that high-performance vehicles are sophisticated machines built to push boundaries. Therefore, aftermarket replacements must withstand rigorous demands and extend beyond the imaginable. ARMYTRIX’s passion, expertise, and quality are evident in the design and manufacture of aerospace titanium and T304 stainless steel systems, which undergo rigorous testing to ensure optimal performance.
ARMYTRIX exhausts are designed to the specifications of each vehicle and handcrafted to ensure a perfect fit. Using 3D scanning technology on models from Audi, BMW, Ferrari, Lamborghini, McLaren, Mercedes-Benz, Nissan, Porsche, and Volkswagen, ARMYTRIX creates systems with maximum compatibility. The signature exhaust acoustics result from the high-quality materials and complex internal chamber designs. From a low-rev purr to a high-pitch howl, ARMYTRIX exhausts provide an array of sound experiences that make any vehicle the center of attention. The innovative Valvetronic technology offers unprecedented versatility to drivers, allowing them to control how they want to be heard with a simple key fob or button press. ARMYTRIX empowers drivers, giving them unparalleled control over their vehicle’s sound and performance.
The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.
Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only.
Please review the full Terms & Conditions here.
We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well.
For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at
sales@bulletproofautomotive.com with any inquiries.
![VF Engineering VF500 Supercharger System for B7 Audi S4 [VFK80-11]](https://bulletproofautomotive.com/wp-content/uploads/2025/02/MessagesImage_1443101596_-gigapixel-hq-scale-2_00x_e78dc351-7615-4d9c-bdb0-5e6a5b56e631-450x450.jpg){kind=tracking}
