Supersprint Front Pipe - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I 330d we added a knurl design

we added a knurl design on the edge to provide a firm grip when installing

while leaving the inside-cabin noise within reasonable levels

The software upgrade for the 2 Series F22 228i was designed and tested at our dyno facility and on road to give optimal performance with maximum safety

Above 5000rpm is where the major changes take place and a highly useful +15-30hp is available from 5000-8500rpm

Supersprint Front Pipe - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I 330d we added a knurl designTo be installed as a kit with 988603 or 988613 and 988624 or 988626 Compatible with the OEM catalytic converter