KYOSTAR Catless Downpipe for 2017+ Audi RS3 8V TT RS 8S EA855 2.5T

KYOSTAR Catless Downpipe for 2017+ Audi RS3 8V TT RS 8S EA855 2.5T

Upgrade your 2017+ Audi RS3 8V or Audi TT RS 8S equipped with the EA855 2.5T turbocharged five-cylinder engine 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 applications.

The catless downpipe design removes the catalytic converter section from the exhaust assembly, creating a more direct turbocharger exhaust path for modified EA855 2.5T vehicles. The vehicle-specific dual-pipe configuration is designed around the Audi RS3 8V and TT RS 8S platform.

Features

• Catless downpipe designed for compatible Audi RS3 8V and TT RS 8S EA855 2.5T applications.

• Designed for the Audi EA855 2.5T turbocharged five-cylinder engine.

• 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 downpipe configuration.

• Vehicle-specific flange locations, routing, and mounting design for Audi RS3 and TT RS applications.

• Designed as a performance exhaust upgrade for modified EA855 2.5T vehicles.

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

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

Fitment

• 2017+ Audi RS3 8V — EA855 2.5T

• 2017+ Audi TT RS 8S — EA855 2.5T

• Audi TT RS 8S EVO — EA855 2.5T

Note:

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

• Please verify your Audi model, chassis generation, production year, engine type, turbocharger outlet connection, exhaust configuration, and mounting locations before purchase.

• Audi RS3 and TT RS exhaust configurations may vary depending on production year, market specification, and factory equipment.

• Please compare your original downpipe assembly, flange connection, 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 RS3 8V and TT RS 8S models use different factory configurations depending on production year, market specification, and equipment level. Please verify that your vehicle matches the listed EA855 2.5T application before purchase.

The supplied product information lists 2017+ Audi RS3 8V and 2017+ Audi TT RS 8S applications. Compatibility should not be determined by engine displacement alone, as turbocharger connections and exhaust layouts may vary.

Please verify turbo outlet connection, oxygen sensor position, exhaust flange location, 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 Audi RS3 8V and TT RS 8S models equipped with the EA855 2.5T engine.

Q: What engine is this downpipe designed for?
A: The supplied product information identifies this downpipe for the Audi EA855 2.5T turbocharged five-cylinder engine.

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

Q: Will this fit Audi RS3 8V?
A: Yes. The supplied fitment information lists 2017+ Audi RS3 8V applications.

Q: Will this fit Audi TT RS 8S?
A: Yes. The supplied fitment information lists 2017+ Audi TT RS 8S applications.

Q: Does this downpipe improve performance?
A: The system is designed as a performance-oriented exhaust upgrade. No specific horsepower or torque increase is stated in the supplied product information.

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, chassis code, EA855 engine configuration, turbo outlet connection, oxygen sensor location, exhaust routing, mounting points, and downstream exhaust compatibility.

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.