At CTS Turbo we are proud to announce our new air intake system for the BMW N54 platform.  Our kit replaces the restrictive factory airbox assembly and the dual inverted cone design allows for the highest possible flow, leading to power gains from 9-15HP. All of the components included in the CTS air intake system work flawlessly together to provide increased horsepower and torque throughout the entire power band and an aggressive race-inspired sound. \n \nDownload our installation guide Here  \n \nApplication: \n \n2008-2010  E82 Coupe 135i  \n2008-2010  E88 Convertible 135i \n2006-2010  E90 Sedan 335i/xi \n2006-2010  E91 Touring 335i/xi \n2006-2010  E92 Coupe 335i/xi \n2006-2010  E93 Convertible 335i/xi \n2011-2013  E92 Coupe 335is \n2008-2009  E60 Sedan 535i/xi \n2008-2009  E61 Touring 535i/xi \n2009+  BMW Z4 sDrive35i