B9/B9.5 Catless Race Downpipe W/ Heat Shield - Audi B9 B9.5 3.0T S4 S5

MBS B9 / B9.5 Catless Race Downpipe w/ Heat Shield

(Audi S4 | S5 – 3.0T)

Unlock the full performance potential of your Audi 3.0T platform with our Catless Race Downpipe, engineered to significantly improve exhaust flow, turbo efficiency, and overall power output. Featuring a large 6-inch diameter design, this downpipe maximizes airflow while delivering a more aggressive exhaust tone and quicker turbo spool.

This system includes an integrated heat shield, designed to reduce engine bay temperatures and protect surrounding components from excessive heat generated during high-performance driving.

Product Features

• Large 6-inch high-flow catless design
• Maximizes exhaust flow and turbo efficiency
• Increases horsepower and torque potential
• Improves throttle response and turbo spool time
• Produces a more aggressive exhaust sound
• Integrated heat shield for improved thermal management

Heat Shield Benefits

• Helps reduce engine bay temperatures
• Protects surrounding components from heat soak
• Improves intake air temperature stability
• Enhances long-term durability of nearby components
• Ideal for high-performance and tuned vehicles

Fitment

• Audi S4 (B9) — 3.0T
• Audi S4 (B9.5) — 3.0T
• Audi S5 Coupe (B9 / B9.5) — 3.0T
• Audi S5 Sportback (B9 / B9.5) — 3.0T

Important Notes

⚠️ Lower downpipe gaskets are required for installation and are not included.
⚠️ This is a catless race downpipe intended for off-road or motorsport use only.
⚠️ May trigger a check engine light without proper tuning.

Availability

This product is in stock and ready to ship.

Installation

Professional installation is recommended, as we do not provide installation guides or support for self-installation.