Audi B9/B9.5, RS4/RS5 Stainless Steel Mid Pipe

Audi B9/B9.5 RS4/RS5 Stainless Steel Mid Pipe

Free up the centre section of your Audi RS4 or RS5 with this Stainless Steel Mid Pipe, engineered to remove one of the last remaining restrictions in the factory exhaust and let the 2.9L twin-turbo V6 breathe properly.

The factory centre section is heavily silenced and noticeably narrower than the pipework either side of it. This straight-through replacement removes that bottleneck entirely, allowing exhaust gas to move freely between the downpipes and the rear silencer. The result is a cleaner, deeper V6 tone and a system that finally flows as well as its individual parts suggest.

It is the natural middle component of a full exhaust build. Fitted with the factory rear exhaust it lifts volume and sharpens the note considerably. Fitted alongside downpipes and a catback it completes the path and removes the final restriction.

Manufactured from SS304 stainless steel with a 1.5mm wall and high temperature TIG welding throughout, using the factory mounting points and clamp positions for a direct bolt on installation.

For an RS4 or RS5 owner chasing genuine flow gains rather than volume alone, this is the component most systems leave out.

Key Features

Straight Through Design

Removes the restrictive factory centre silencer entirely for unrestricted exhaust flow between the downpipes and the rear section.

SS304 Stainless Steel Construction

Corrosion resistant stainless steel with a 1.5mm wall, built to withstand sustained high exhaust gas temperatures.

Mandrel Bent Tubing

Maintains a consistent internal diameter through every bend so flow is never choked.

High Temperature TIG Welding

Clean, strong welds engineered for demanding performance use, with every unit pressure tested before dispatch.

Integrated Flex Sections

Braided flex joints absorb engine movement and drivetrain vibration, protecting the joints and keeping the system quiet on the road.

Direct Bolt On Fitment

Uses the factory mounting points and clamp positions, with no cutting or welding required.

Performance Benefits

• Removes the restrictive factory centre silencer
• Increased exhaust flow efficiency
• Sharper throttle response
• Deeper and cleaner twin-turbo V6 tone
• Increased volume with the factory rear exhaust retained
• Completes the exhaust path when paired with downpipes and a catback

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

Vehicle Fitment

Audi B9 RS4 Avant (2018-2019)
Audi B9.5 RS4 Avant (2020+)

Audi B9 RS5 Coupe / Sportback (2018-2019)
Audi B9.5 RS5 Coupe / Sportback (2020+)

2.9L Twin-Turbocharged V6

Please Note

Professional installation is strongly recommended.

This is a mid pipe section only. Downpipes and the rear exhaust section are not included.

Removing factory silencing will increase cabin noise. Sound characteristics vary considerably depending on which other exhaust components are fitted.

Why Choose Proven Performance Parts

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