Downpipe Kit Wagner Tuning for BMW F-Serie B58 Engine w/o OPF (200CPSI) - WT-500001027.200CPSI - Downpipe Kit with 200CPSI Racing catalyst or without catalyst for BMW B58 Engine BMW F20/21 M140i 3,0L 250KW/340PS 2016 - 2018 (except GPF-models)BMW F22/23 M240i 3,0L 250KW/340PS 2016 - 2018 (except GPF-models)BMW F30/31/34 340i 3,0L 240KW/326PS 2015 - 2018 (except GPF-models)BMW F32/33/36 440i 3,0L 240KW/326PS 2015 - 2018 (except GPF-models)BMW G30/31/38 540i 3,0L 250KW/340PS 2017 - 2018 (except GPF-models)BMW G32 GT 640i 3,0L 250KW/340PS 2017 - 2018 (except GPF-models)BMW G12 740i 3,0L 240KW/326PS 2015 - 2018 (except GPF-models)BMW X3 G01 M40i 3,0L 265KW/360PS 2017 - 2018 (except GPF-models)BMW X4 G02 M40i 3,0L 260KW/354PS 2017 - 2018 (except GPF-models)The downpipe kit replaces following stock BMW part: 18328631625made out of high quality stainless steel 1.4301 (SS304)complete Ø3,5 and adapter for stock exhaust 200CPSI EU6 Racing Metal Catalytic Converter / optionally without catalyst converter 100% perfect fit, replace OE Mless thermal load on the turbochargermore power by reducing back pressuresignificantly more torque