Audi 8V/8Y RS3 Catted Downpipe

Audi 8V/8Y RS3 High-Flow Catted Downpipe

Unlock the performance potential of your Audi RS3 with this High-Flow Catted Downpipe — engineered to maximise exhaust flow, improve turbocharger efficiency, and deliver an aggressive exhaust note while maintaining the refinement and drivability expected from the legendary five-cylinder platform.

Designed specifically for the Audi 8V and 8Y RS3, this high-flow catted downpipe replaces the restrictive factory catalyst with a premium high-flow catalytic converter, significantly reducing exhaust backpressure and allowing the turbocharger to spool faster and operate more efficiently. The result is improved throttle response, increased power potential, enhanced turbo acoustics, and a more aggressive soundtrack from the iconic 2.5 TFSI engine.

Constructed from premium T304 stainless steel and precision TIG welded throughout, this downpipe is built to withstand extreme temperatures and demanding performance applications while maintaining OEM-style fitment and long-term reliability.

Whether paired with the factory exhaust system or a complete aftermarket setup, this High-Flow Catted Downpipe provides one of the most effective performance upgrades available for the Audi RS3 platform.

Key Features

High-Flow Performance Catalyst

Utilises a premium high-flow catalytic converter to reduce exhaust restrictions while maintaining excellent exhaust flow characteristics.

Premium T304 Stainless Steel Construction

Manufactured from corrosion-resistant stainless steel for exceptional durability and heat resistance.

Improved Turbo Efficiency

Reduced exhaust backpressure allows the turbocharger to spool faster and operate more efficiently.

Mandrel-Bent Tubing

Maintains unrestricted exhaust flow and consistent pipe diameter throughout the system.

Precision TIG Welded

Strong, clean welds engineered to withstand extreme temperatures and demanding performance applications.

Direct Bolt-On Fitment

Designed specifically for Audi 8V and 8Y RS3 models using factory mounting locations.

Performance Benefits

• Increased horsepower and torque potential
• Faster turbo spool and improved throttle response
• Reduced exhaust backpressure
• Enhanced turbocharger efficiency
• Improved top-end performance
• Ideal supporting modification for Stage 1 and Stage 2 builds

Performance gains may vary depending on ECU calibration, fuel quality, and supporting modifications.

Sound Characteristics

Compared to the factory downpipe, this High-Flow Catted Downpipe typically delivers:

• Deeper and sportier exhaust tone
• Increased turbo spool acoustics
• Enhanced five-cylinder character
• Improved exhaust volume without excessive harshness
• Refined sound suitable for daily driving

Vehicle Fitment

Audi RS3 8V (2015–2020)

• Sedan

• Sportback

Audi RS3 8Y (2022+)

• Sedan

• Sportback

2.5L Turbocharged DAZA / DNWA / DXH TFSI Engine

Please Note

Professional installation is strongly recommended.

Performance gains may vary depending on ECU calibration and supporting modifications.

Please confirm whether your vehicle is equipped with OPF/GPF emissions systems before ordering, as OPF-equipped vehicles may require alternative configurations.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — particularly Volkswagen GTI & R models, Audi S/RS platforms, and other VAG vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.