for M40i xDrive sport catalysator 300 cpsi emission standard EURO 6 not for cars with otto particle filter SA 1DE AC Schnitzer downpipe incl. sports catalytic converter - performance increase + approx. 8 - 10 hp in the medium rev range - improved sound - ECE approval - no registration required - made in Germany - exclusively for BMW cars Uniqueness of the AC Schnitzer sports catalytic converter - increased engine performance by reducing the exhaust back pressure - 300 cpsi - stainless steel catalyst with heat insulator - optimised flow technology AC Schnitzer downpipe incl. sports catalytic converter - performance increase + approx. 8 - 10 hp in the medium rev range - improved sound - ECE approval - no registration required - made in Germany - exclusively for BMW cars Uniqueness of the AC Schnitzer sports catalytic converter - increased engine performance by reducing the exhaust back pressure - 300 cpsi - stainless steel catalyst with heat insulator - optimised flow technology