Milltek, OPF Bypass Resonated for OE Silencer M3 M4 G8x

Expert's advice:

​Since late 2018, most BMW models have been manufactured with a Gasoline/Otto Particulate Filter to further reduce the emissions from the vehicle. The Milltek Sport Particulate Filter-Back range is designed to compensate for the sound-reducing qualities of the particulate filter and significantly improve the sound aesthetic of the exhaust system, as well as the performance. 

Unlock the full potential of your BMW G8x with the Milltek Sport OPF-Delete Exhaust Midpipes. These high-flow, non-resonated midpipes replace the restrictive factory sections and remove the OPF (gasoline particulate filters), enhancing both exhaust flow and acoustic presence.

The Milltek OPF bypass will replace the mid-pipe section of the exhaust and remove the OPF filter. Please note that this Milltek OPF bypass requires an ECU Remap.

Mark Hendrikx - Automotive engineer at Mosselman