Active Autowerke BMW B58N X5-40i X3-40i X7-40i 540i 640i 740i AFlow Catted Downpipe (2025 and newer) 435I These ultra high flow catalytic

These ultra high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems

5" ultra high flow GESI catalytic converter that will NOT produce a CEL

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Made in the USA

com under Engine Electrical System to confirm which DME you have or call us if you are unsure

Active Autowerke BMW B58N X5-40i X3-40i X7-40i 540i 640i 740i AFlow Catted Downpipe (2025 and newer) 435I These ultra high flow catalyticNO PERFORMANCE TUNE NEEDED. Active Autowerke BMW B58N Gen 3 Catted Downpipe this is not for M340 and M440 B58N Gen 3 which also incorporates a new GPF into the downpipe. NOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non US model cars. BMW introduced a new valvetronic, single turbo version of its direct injection engine for the later F Chassis models beginning in 2016 and carried over to the G