Audi C8 RS6 RS7 EA825 Axle Back Exhaust System Muffler Catless Downpipe 4.0T V8

KYOSTAR Catless Downpipe for 2019+ Audi C8 RS6 RS7 EA825 4.0T V8 Mild Hybrid

Upgrade your 2019+ Audi C8 RS6 or C8 RS7 equipped with the EA825 4.0T twin-turbo V8 Mild Hybrid quattro system with the KYOSTAR Catless Downpipe. Designed as a performance-oriented replacement for the factory downpipe configuration, this system provides an upgraded exhaust flow path for high-performance Audi RS applications.

The catless downpipe design removes the catalytic converter section from the exhaust assembly, creating a more direct turbocharger exhaust path for modified EA825 4.0T V8 vehicles. The vehicle-specific dual downpipe configuration is developed around the Audi C8 RS6 and RS7 platform with Mild Hybrid quattro compatibility.

Features

• Catless downpipe designed for 2019+ Audi C8 RS6 and RS7 applications.

• Designed for Audi EA825 4.0T twin-turbo V8 Mild Hybrid quattro vehicles.

• Catless configuration removes the catalytic converter section for a performance-focused exhaust layout.

• Provides a more direct exhaust path from the turbocharger compared with the factory catalytic downpipe configuration.

• Vehicle-specific pipe routing, flange locations, and mounting design for Audi C8 RS applications.

• Dual downpipe configuration developed around the twin-turbo V8 exhaust layout.

• Performance exhaust upgrade suitable for modified Audi RS6 and RS7 vehicles.

• Can enhance turbocharger spool sound and exhaust tone compared with the factory catalytic downpipe setup.

• Designed for enthusiasts seeking improved exhaust flow and a motorsport-inspired exhaust configuration.

Fitment

• 2019+ Audi C8 RS6 — EA825 4.0T V8 Mild Hybrid quattro

• 2019+ Audi C8 RS7 — EA825 4.0T V8 Mild Hybrid quattro

Note:

• This product is a catless downpipe and does not include catalytic converters.

• Please verify your vehicle year, Audi chassis code, RS model, engine configuration, turbocharger outlet connection, exhaust layout, and mounting points before purchase.

• Audi C8 RS6 and RS7 exhaust configurations may vary depending on production year, market specification, and factory equipment.

• Please compare your original downpipe assembly, flange connections, oxygen sensor locations, and exhaust routing with the product photos before installation.

• Catless exhaust components may not comply with emissions regulations in certain regions. Please check local laws before purchase and installation.

Fitment Note:

Audi C8 RS6 and RS7 models use different factory exhaust configurations depending on production year, regional specification, and equipment level. Please verify that your vehicle matches the listed EA825 4.0T V8 Mild Hybrid quattro application before purchase.

The supplied product information lists 2019+ Audi C8 RS6 and RS7 Mild Hybrid quattro applications. Compatibility should not be determined by engine displacement alone, as turbocharger connections, emissions equipment, and exhaust routing may vary.

Please verify turbo outlet connections, oxygen sensor positions, exhaust flange locations, mounting brackets, and downstream exhaust compatibility before installation.

Vehicles equipped with upgraded turbochargers, aftermarket exhaust systems, custom exhaust components, or other performance modifications may require additional fitment verification or installation adjustment.

Professional installation is recommended. Proper flange alignment, gasket sealing, oxygen sensor installation, exhaust connection tightening, and clearance inspection should be performed during installation.

Product Details

FAQ

Q: What vehicles does this catless downpipe fit?
A: This downpipe is designed for compatible 2019+ Audi C8 RS6 and RS7 models equipped with the EA825 4.0T V8 Mild Hybrid quattro system.

Q: What engine is this downpipe designed for?
A: The supplied product information identifies this downpipe for the EA825 4.0T twin-turbo V8 engine.

Q: Is this a catless downpipe?
A: Yes. This product does not include catalytic converters and is designed as a catless performance downpipe.

Q: Will this fit Audi C8 RS6?
A: Yes. The supplied fitment information lists 2019+ Audi C8 RS6 applications.

Q: Will this fit Audi C8 RS7?
A: Yes. The supplied fitment information lists 2019+ Audi C8 RS7 applications.

Q: Is this compatible with Mild Hybrid quattro models?
A: The supplied product information specifically lists Mild Hybrid quattro applications.

Q: Does this include catalytic converters?
A: No. This is a catless downpipe configuration and does not include catalytic converters.

Q: Does this increase horsepower?
A: No specific horsepower or torque increase is stated in the supplied product information, so no specific performance gain is claimed.

Q: Will this make the exhaust louder?
A: A catless downpipe can make turbocharger and exhaust sounds more noticeable compared with the factory catalytic downpipe configuration.

Q: Is ECU tuning required?
A: ECU tuning requirements are not specified in the supplied product information and may vary depending on vehicle configuration and modifications.

Q: Can this be used on public roads?
A: Catless exhaust components may not comply with emissions regulations in all regions. Please check local regulations before installation.

Q: What should I verify before purchase?
A: Please verify your Audi model, C8 chassis code, EA825 engine configuration, Mild Hybrid system, turbo outlet connection, oxygen sensor location, exhaust routing, and mounting points.

Q: Is professional installation recommended?
A: Yes. Professional installation is recommended to ensure correct alignment, sealing, sensor installation, and exhaust connection.

Warranty & Shipping

Every KYOSTAR exhaust component is inspected before shipment to ensure product condition, pipe construction, flange quality, connection points, mounting provisions, and packaging integrity before delivery.

All components are securely packaged to help reduce the risk of transportation damage. Please inspect the package and downpipe components after delivery and contact our support team if you notice missing components, shipping damage, or product-related concerns.

Please contact KYOSTAR customer support if you need assistance with vehicle fitment, installation questions, missing components, or after-sales service.