Supersprint Front Pipe - BMW 1 Series F20/F21 M135I | 2 Series F22/F23 M235I | F87 M2 | 3 Series F30/F31 335I Evolve-R Once the flow characteristics of

Once the flow characteristics of are changed by a radical design such as this it becomes essential to recalibrate the DME

Individually fine-tuned during BILSTEIN road testing

F1 Style TIG Welded Flow Optimised Slip-on Merge Collector

Threaded bung for oxygen sensors provided

Dyno and road developed

Supersprint Front Pipe - BMW 1 Series F20/F21 M135I | 2 Series F22/F23 M235I | F87 M2 | 3 Series F30/F31 335I Evolve-R Once the flow characteristics ofReplaces the stock front section and flex joint. Removes the flattened sections of the stock pipe for improved flow. Requires the OEM BMW clamp (part number 18 30 7 560 815) to be fitted to the stock centre section.