Exhaust system Capristo Audi RS4 B9

02AU05203007

Full exhaust system for the Audi RS4 B9 with the 2.9 TFSI EA839 biturbo V6. It replaces the standard section from the downpipe connection back, so the restriction is removed along the whole length rather than only at the rear.

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. A full system also widens the pipe sections the stock parts narrow, which is what the turbochargers feel.

Material and build

T309 (1.4828) stainless steel, hand TIG welded and polished to a mirror finish in Sundern, Germany, engineered with 3D laser scanning, CAD and CNC bending.

Before you order

• The system combines with the Capristo OPF replacement pipes on cars with a particulate filter;
• ECU programming may be needed if the filter or catalysts are removed;
• Tailpipes are chosen separately;
• Installation uses the original mounting points and is reversible.

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