Transform the breathing of your 2018+ Audi A7 Sportback Sedan C8 55Tsfi 3.0 Turbo and 2019+ Audi A6 Sedan/Allroad C8 55Tsfi 3.0 Turbo with Redstar performance exhaust downpipes and a resonator delete. By replacing the massive OEM catalytic converter sections directly after the turbocharger with precision built Redstar downpipes plus a matching resonator delete, this system removes factory restrictions and liberates the 3.0t Turbo 55 TFSI engine.
Freer flow reduces backpressure for faster spool, sharper throttle response, and significant gains when paired with ECU calibration. The package is engineered to hold the power your tune delivers, even with a big-turbo upgrade. For thermal control, Redstar OEM-style heat shielding uses motorsport inspired construction to cut radiant exhaust heat by up to 80 percent, helping manage under-bonnet temperatures and safeguard nearby components.
Built for durability and precise fitment, every assembly is manufactured from highest quality 2.0mm wall 304 stainless steel, 100 percent TIG welded and back purged, and uses OEM-spec interfaces including a Vband Downpipe to Res Delete Connection. Straight tunable O2 spacers are included with three inserts to assist sensor readiness on competition setups. A true 100 percent bolt-on, LHD and RHD compliant upgrade that delivers the unmistakable Redstar sound and performance.
Available Options
- HJS HD 200cpsi Catalytic Converters: Engineered in Germany and trusted worldwide, the HJS 200cpsi ultra high-performance cats are rated for over 1000hp. Renowned for exceptional flow, durability, and consistent quality, these converters set the benchmark for high-output applications. Ideal for drivers demanding maximum performance without compromise.
- GESI GEN2 400cpsi Catalytic Converters: The latest GEN2 series from GESI is rated to support up to 1000hp while offering smoother exhaust flow and improved efficiency compared with factory units. Featuring advanced emissions technology for optimal catalyst function at high flow rates. A strong choice for those seeking significant performance gains with refined operation.
- OEM-Style Heat Shielding: Redstar's signature thermal management system reduces radiant exhaust heat by up to 80%. Developed with motorsport-inspired materials and construction, it uses a multi-layer design of ceramic insulation and embossed stainless steel foil. Unlike wraps or coatings that degrade quickly, Redstar shielding delivers long-term durability and consistent protection for engine bay components.
- Competition/Catless: Maximum flow design for uncompromised performance. Delivers the most aggressive exhaust note and optimal power gains. Track use only - not for road use.
Key Performance Benefits
- Significant power and torque gains, especially when paired with ECU tuning
- Faster turbo spool and crisper throttle response
- Reduced under-bonnet temperatures for improved component protection
- Enhanced exhaust tone with a deeper, more engaging character
- Supports high output builds and big-turbo upgrades
- 100 percent bolt-on installation with seamless integration
Technical Specifications
- Highest quality 2.0mm wall 304 stainless steel construction
- 100 percent TIG welded and back purged for strength and consistency
- OEM-spec flanges for precise alignment and sealing
- Vband Downpipe to Res Delete Connection
- All brackets and mounts as on OEM unit
- LHD/RHD compliant design
Notes
- OFF ROAD/MOTORSPORT USE ONLY
- This product is not designed to meet any emissions or noise standards and is not for street or highway use. It is not certified and may not be legal for use on emissions controlled vehicles in any country or jurisdiction.
- Lifetime limited warranty
