With the performance chip you will get to get the most safe and reliable speed out of your BMW 328XI 2007-2012, with so much more additional features ! Upgrading to this performance chip won't be a hassle, and anyone can do it. The performance chip will enable your car to go farther, faster, be more reliable, and prove to last longer overall, but especially the engine. Take your BMW 328XI 2007-2012 to it's maximum potential now before it's too late !