Some bad news on this project. The downpipe fix logic implemented is working well for the N20 motor and it was expected to also work for the N55, since they use the same O2 sensors and connectors, but during testing that has proven not to be the case. The design is not compatible with the N55 DME. So a new product will need to be redesigned for the N55 downpipe fix. Unfortunately BMS does not have an ETA for doing this so as of now this project is on ice. Sorry for getting everyone's hopes up.
NEW PERFORMANCE LINE N54 DOWNPIPES & M3/M4 & F30 ER DOWNPIPES NOW IN STOCK - ER N54 CHARPE PIPE SPECIALS - NEW JB4 G5 ISO for N54 and F30 N55 ON SALE - NEW S55 M3/M4 JB4 NOW SHIPPING