This mid-pipe runs from the downpipes to the stock rear silencer, deleting the center silencer, secondary cats and OPF. This version contains an OPF sensor connector for the OPF hose. For use with OPF Deleter unit, coding or if you don't want to remove the OPF cables.
It converts the exhaust track from a double pipe into one. This results in a more full-bodied exhaust sound with a deep tone. Requires an ECU tune (recommended) or OPF deleter unit (Available here: https://autotopnl.shop/nl/products/leib-cat-and-or-opf-delete-kit-pro-for-bmw-g8x-m3-m4-competition?_pos=2&_sid=de5c14647&_ss=r )which removes the OPF fault codes (since it's gone).