Evolution Racewerks Catted Downpipes, BMW X5M F95 S63 OPF

Expert's advice:

The Evolution Racewerks catted downpipes for the BMW X5M F95 S63 are designed to eliminate the main restriction in the factory exhaust system. By reducing backpressure directly after the turbochargers, they improve exhaust flow, increase power and torque, and deliver noticeably faster turbo response across the entire rev range.

Manufactured from high-quality stainless steel with mandrel-bent piping, these downpipes offer an OEM-style fit and seamless integration with both stock and aftermarket exhaust systems. The integrated flex sections help absorb engine movement and thermal stress, ensuring long-term reliability under high load.

The high-flow 200-cell sport catalytic converters strike an excellent balance between performance and drivability, making them ideal for tuned applications. ECU recalibration is required after installation to achieve optimal performance and to prevent fault codes.

Mark Hendrikx - Automotive engineer at Mosselman