OPF/GPF replacement pipes Capristo Audi RS4 B9

02AU05203009

OPF/GPF replacement pipes for the Audi RS4 B9 with the 2.9 TFSI EA839. The particulate filter is the largest restriction left in the standard system on cars built with it, and these pipes take its place.

What changes

Removing the filter drops back pressure in the section the turbochargers breathe through, so throttle response and the volume of the V6 both change. The effect is strongest together with the Capristo rear silencer or the full system.

Material and build

T309 (1.4828) stainless steel, hand TIG welded in Sundern, Germany. The pipes are developed on 3D laser scans of the original part and bolt to the standard flanges without cutting.

Before you order

• ECU programming is normally required so the filter monitoring does not set a fault;
• Running without a particulate filter is restricted on public roads in many markets, Capristo supplies the pipes for track use;
• They combine with the Capristo rear silencer and exhaust system;
• Installation is reversible, the standard filter can be refitted.

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