Downpipe Kit without catalyst converter 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: 18328631625 made out of high quality stainless steel 1.4301 (SS304) complete �3,5 and adapter for stock exhaust without catalyst converter 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque Only suitable for cars without GPF! Error display in the DME, because removed catalyst converter.