Rear silencer Capristo Audi RS4 B9

02AU05203006

Valved rear silencer for the Audi RS4 B9 with the 2.9 TFSI EA839 biturbo V6. The turbochargers already take a lot of the sound out before the exhaust starts, so the rear section has to work harder on this generation than on the naturally aspirated cars before it.

How it works

The valves stay closed at light load, so cruising noise is close to standard. Opened, the gas path shortens and bypasses the damping chambers, which is where the volume and the sharper response come from.

Material and build

T309 (1.4828) stainless steel, hand TIG welded and polished to a mirror finish in Sundern, Germany. The silencer is developed on 3D laser scans of the original pipework and bolts to the standard hangers without cutting.

Before you order

• The silencer can be combined with the standard mid-section or with the Capristo system;
• On cars with a particulate filter the effect is stronger together with the OPF replacement pipes;
• Tailpipes are chosen separately;
• Installation is reversible.

Capristo Automotive GmbH has built valved exhaust systems since 1990 and holds several patents on its valve technology.