FYI - As of December 2009, an unconfirmed source from Bimmerfest says BMW has given another try to improve the high pressure fuel pump in the N54 engine. The current part number as of 12/09 for the HPFP ends in 881.
The new HPFP part number is said to end in 943.
There is NO information at this time as to when this pump will be released or used. There is no data and no other information as to what this pump fixes or doesn't fix.
2009 335i 6MT - M-Sport - All stock