Supersprint Downpipe With Metallic Catalytic Converter (100CPSI) WRC - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I M2 Competition (F87) The software upgrade for the

The software upgrade for the 1 Series 120d was designed and tested at our dyno facility and on road to give optimal performance with maximum safety

which has been tailored to highlight lower frequencies and increase the listening enjoyment

Threaded bung provided for oxygen sensor

we designed a pair of tubes with smooth curves and with an innovative Venturi stack matched to the inner diameter of the filter neck

The software upgrade for the 3 Series E90/E91/E92/E93 320d was designed and tested at our dyno facility and on road to give optimal performance with maximum safety

Supersprint Downpipe With Metallic Catalytic Converter (100CPSI) WRC - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I M2 Competition (F87) The software upgrade for theNOT ROAD LEGAL This Supersprint downpipe is designed to be a plug&play upgrade. It replaces the stock components without any modification. O2 sensor plugs and mounting brackets are in the same position as the OEM unit. The catalytic converter is a 100 CPSI unit, with a metallic honeycomb and a high content of noble metals. The shape and volume have been decided for optimal efficiency, thus the generous size. The high amount of noble metals avoid any