Active Autowerke BMW B58N X5-40i X3-40i X7-40i 540i 640i 740i GESI Catted Downpipe (2025 and newer) brace this combo is the perfect

this combo is the perfect desk ornament

Consistent diameter tubing for increased performance

A stock BMW E46 M3 is around 265 WHP

Ideal for Forced Induction Applications with no loss of HP

Active Autowerke BMW B58N X5-40i X3-40i X7-40i 540i 640i 740i GESI Catted Downpipe (2025 and newer) brace this combo is the perfectNO 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