Evolution Racewerks Catted Downpipe, BMW B58

Expert's advice:

The Evolution Racewerks B58 200-cell catted downpipe reduces exhaust backpressure compared to the OEM downpipe, resulting in increased power and torque, improved throttle response, and faster turbo spool, while retaining a high-flow metallic catalytic converter. This makes it a balanced upgrade for performance-oriented street cars.

Manufactured from high-quality stainless steel and fully TIG welded, this downpipe replaces the original unit and offers a precise OEM-style fitment. The large-diameter, mandrel-bent piping and smooth transitions reduce exhaust turbulence, while the integrated flex section helps protect the turbocharger and exhaust system under load.

Please note that although this downpipe is equipped with a high-flow catalytic converter, compliance with road regulations may vary by country. ECU remapping is recommended after installation to fully optimise performance and to prevent potential check engine light warnings.

Mark Hendrikx - Automotive engineer at Mosselman