FITMENT GUIDE 2007+ BMW 335i/xi/is Coupe/Sedan/Convertible (N54 Only) 2008+ BMW 135i/1M (N54 Only) 2009+ BMW Z4 35si (N54 Only) 2008+ BMW 535i/xi (N54 Only) Our Boost Monkey Charge Pipe is designed to handle the highest levels of tuning. Constructed of high-grade aluminum the Boost Monkey N54 harge pipe connects to the throttle body using a connection similar to the oem design for a precise and secure fitment The integrated blow off valve flange is designed for any 50mm TiAL bov or 50mm Turbosmart Raceport bov. Most importantly, The design of this charge pipe will fit the stock intercooler or any aftermarket intercooler that bolts up to the stock charge pipe.