Reviewed By arnold a (cerritos, CA) Reviewed for a 2011 BMW X5 —7/17/2014 9:21 PM
Easy to install, good quality and improve engine performance
Reviewed By William H (Huntsville, AL) Reviewed for a 2002 BMW X5 —4/18/2007 1:45 PM
I noticed a difference in (better) engine responsiveness right away! Cannot accurately determine MPG figures due to city driving. Maybe I can report back later when I get some highway driving! No regrets! Just smiles!