Untd. Performance Catted Downpipe W/Shield 2.9T – Audi B9 RS4/RS5

Unleash the full potential of your Audi B9 RS4 or RS5 with the Untd. Performance Catted Downpipe w/Shield. Designed for the 2.9T V6 engine, this downpipe replaces the restrictive factory components to enhance exhaust flow, increase turbo efficiency, and deliver a more aggressive exhaust note—all while maintaining emissions compliance. With integrated heat shielding for optimal durability, this downpipe is the ideal upgrade for enthusiasts seeking peak performance and a refined sound from their Audi.

Key Features:

High-Flow Catted Design
The Untd. Performance Catted Downpipe features a high-flow catalytic converter that reduces exhaust restriction, allowing your 2.9T engine to breathe more freely. This results in improved turbo spool, reduced turbo lag, and noticeable power gains across the RPM range, all while keeping your Audi emissions-compliant.

Integrated Heat Shielding
This downpipe is equipped with built-in thermal shielding to protect surrounding components from excess heat. Whether you’re on a spirited drive or at full throttle, the heat shield maintains optimal performance and protects engine bay components from the intense temperatures generated during high-performance driving.

Improved Throttle Response & Power Gains
With reduced backpressure and a more efficient flow path, your RS4/RS5 will experience quicker turbo spool, improved throttle response, and increased power delivery throughout the rev range. Expect stronger low-end torque and more aggressive high-RPM performance, perfect for both street driving and track use.

Aggressive Exhaust Note
The removal of restrictive factory components gives your 2.9T engine a deeper, more aggressive exhaust tone. Expect a pronounced exhaust growl with refined, motorsport-inspired crackles, especially under heavy acceleration. Whether you’re on the streets or carving through corners, the sound will enhance the driving experience.

Durable Stainless Steel Construction
Crafted from high-quality 304 stainless steel, this downpipe is built to withstand the extreme conditions of high-performance driving. With TIG-welded seams and precision CNC-machined flanges, you can be sure of a perfect fit and long-lasting durability.

Emissions-Compliant
The high-flow catalytic converter ensures that this downpipe meets emissions standards in most regions, making it a great option for those looking to balance performance with legal compliance.

Compatibility:

• Audi RS4 B9 2.9T (2018+)

• Audi RS5 B9 2.9T (2018+)

• Engine: 2.9L V6 Twin-Turbo

• Compatible with both sedan (RS4) and coupe (RS5) variants

Perfect for Tuned and Stock Builds

Whether you’re running a stock engine, a Stage 2 tune, or a more aggressive turbo setup, the Untd. Performance Catted Downpipe w/Shield is the perfect upgrade to support increased airflow and turbo efficiency, providing substantial power and sound improvements.

⚠️ Note: Please verify local emissions regulations before installation. Designed for street use, but not emissions-compliant in all regions.