Fitment: for BMW X5 4.8L V8 2004-2010 for BMW 745Li 4.4L V8 2004-2005 for BMW 745i 4.4L V8 2004-2005 for BMW 750i 750Li 4.8L V8 2006-2008 for BMW 645Ci 4.4L V8 2004-2005 for BMW 650i 4.8L V8 2006-2010 for BMW 545i 4.4L V8 2004-2005 for BMW 550i 4.8L V8 2006-2010 for BMW 4.4L N62B44 4.8L N62B48.
Fuel-Efficient Injector: High efficient fuel sprays and High Impedance Coil enable fast start up in the cold environments, low fuel consumption, and better performance.
Professional installation is highly recommended: Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune. We also suggest that you check the other component of the engine before installation.