Milltek Sport BMW G42 M240i OPF/GPF Delete Midpipe (2022+)Transform the tone and character of your BMW G42 M240i with the Milltek Sport OPF GPF Delete Midpipe, designed to replace the restrictive factory particulate filters for a more aggressive exhaust note and improved performance. Built from premium T304 stainless steel, this precision engineered midpipe significantly reduces backpressure, helping to unlock your vehicles true potential when paired with a Stage 2 ECU remap or a compatible OPF GPF bypass