My wife just replaced her 2010 335xi with a 2013 335i xDrive which means time for a new tuner. We installed this tuner about 1 year ago and it has never tripped a code, but provided a nice boost in power. It literally takes 5 minutes to install and uninstall. Listed below are all of the compatible vehicles and link to details. Let me know if you have any questions.
• 2006+ E90 Sedan 335i / 335xi
• 2006+ E91 Touring 335i / 335xi
• 2006+ E92 Coupe 335i / 335xi
• 2007+ E93 Convertible 335i / 335xi
• 2008+ E60 Sedan 535i / 535 xi
• 2008+ E61 Touring 535i / 535 xi
• 2008-2010 E82 Coupe 135i
• 2008-2010 E88 Convertible 135i
• 2008+ BMW X6 xDrive35i
• 2009+ BMW Z4 sDrive35i
http://www.burgertuning.com/jbplus.html