OAO Valvetronic Exhaust System for Audi TT RS 8S 2.5T TFSI 5-Cylinder T304 Stainless Steel Performance Exhaust Unleash the Legendary Sound of Audi's 2.5T Five-Cylinder Engine Designed specifically for the Audi TT RS 8S equipped with the iconic 2.5L TFSI five-cylinder turbocharged engine, the OAO Valvetronic Exhaust System is engineered to deliver an unforgettable combination of motorsport-inspired sound, improved exhaust flow, and intelligent valve-controlled performance. Featuring an electronic valve control system, the OAO exhaust allows drivers to seamlessly switch between a refined cruising mode and an aggressive performance exhaust character, giving the TT RS the emotional soundtrack it deserves. Manufactured from premium T304 stainless steel with precision TIG welding, mandrel-bent tubing, and high-flow exhaust technology, every OAO exhaust system is designed for exceptional durability, optimal performance, and OEM-quality fitment. Key Features ✓ Designed for Audi TT RS 8S ✓ 2.5L TFSI Turbocharged Inline-5 Engine ✓ Electronic Valvetronic Exhaust System ✓ Premium T304 Stainless Steel Construction ✓ High-Flow Performance Muffler Design ✓ Precision TIG Welded ✓ Mandrel-Bent Tubing ✓ Reduced Exhaust Backpressure ✓ Improved Exhaust Flow Efficiency ✓ Enhanced Five-Cylinder Sound ✓ Lightweight Performance Construction ✓ OEM-Level Direct Bolt-On Fitment Intelligent Valve Control Technology Comfort Mode With the exhaust valves closed, the system maintains a refined and comfortable exhaust tone suitable for daily driving. Perfect for: Daily Commuting Highway Cruising Long-Distance Driving Quiet Neighborhood Use Reduced Cabin Drone Comfortable Touring Sport Mode Open the valves and experience the full character of Audi's legendary 2.5T five-cylinder engine. Enjoy: Increased Exhaust Volume Signature Five-Cylinder Racing Sound Stronger Turbocharger Acoustics Sharper Acceleration Note More Aggressive Downshift Sound Enhanced Driver Engagement The result is the unmistakable Audi RS performance soundtrack. Performance Benefits The OAO Valvetronic Exhaust System is engineered to improve exhaust efficiency while enhancing the driving experience. Potential benefits may include: Improved Exhaust Gas Flow Reduced Exhaust Restriction Sharper Throttle Response Enhanced Turbocharger Sound Improved High-RPM Breathing Better Compatibility with Performance Downpipes Optimized Performance After ECU Tuning Actual performance gains may vary depending on supporting modifications and vehicle calibration. Motorsport-Inspired Engineering Developed using advanced exhaust flow analysis and performance engineering principles, every OAO exhaust system is optimized for both sound quality and performance. Engineering highlights include: High-Flow Straight-Through Muffler Design Optimized Exhaust Pipe Diameter Smooth Exhaust Gas Transition Precision Electronic Valve Integration Reduced Flow Turbulence Lightweight Construction Factory Mounting Compatibility Designed for enthusiasts who demand both everyday usability and track-inspired performance. The Legendary Audi 2.5T Five-Cylinder Sound The Audi RS 2.5 TFSI engine is famous worldwide for its unique five-cylinder character. The OAO Valvetronic Exhaust enhances the natural sound of this legendary engine: Deep Cold Start Distinctive Five-Cylinder Rhythm Strong Turbo Spool Sound Sharper Throttle Response Aggressive Acceleration Tone Enhanced Gear Change Acoustics Racing-Inspired High-RPM Sound With the valves open, the TT RS delivers the emotional sound experience expected from Audi Sport engineering. Premium T304 Stainless Steel Construction Manufactured from motorsport-grade T304 stainless steel for maximum durability and long-term reliability. Advantages include: Excellent Corrosion Resistance Superior Heat Resistance High Structural Strength Lightweight Performance Design Precision TIG Welding CNC-Machined Connections Premium Surface Finish Every OAO exhaust system is carefully inspected before shipment to ensure perfect quality and fitment. Vehicle Fitment Compatible with: Audi TT RS Coupe (8S) Audi TT RS Roadster (8S) Engine Platform 2.5L TFSI Turbocharged Inline-5 Model Years 2017 2018 2019 2020 2021 2022 2023 2024 Please verify your vehicle model, year, and exhaust configuration before ordering. Package Includes OAO Valvetronic Exhaust System Electronic Valve Control Module Wireless Remote Controller Exhaust Installation Hardware Protective Packaging Installation Direct bolt-on installation using factory mounting locations. No cutting or welding required. Professional installation is recommended to ensure proper fitment and valve operation. Optional Performance Upgrades Compatible with: OAO Performance Downpipes OAO High-Flow Catalytic Pipes ECU Performance Tuning Carbon Fiber Exhaust Tips Titanium Burnt Exhaust Tips Important Notes This product is designed for off-road or motorsport use where permitted by local regulations. Please verify local emissions requirements before purchase or installation. Why Choose OAO Performance OAO specializes in premium exhaust systems for Audi RS, BMW M, Mercedes-AMG, Porsche, Ferrari, Lamborghini, Aston Martin, Nissan GT-R, and other high-performance vehicles. Every OAO exhaust system combines precision engineering, premium materials, and extensive fitment testing to deliver OEM-quality installation, exceptional durability, and an unforgettable driving experience. Upgrade your Audi TT RS 8S with the OAO Valvetronic Exhaust System and experience the perfect combination of daily comfort, RS performance sound, and the legendary character of Audi's 2.5T five-cylinder engine.