Manufacturer SKU: BMW.EVFC This small plug-and-play unit connects into the factory wiring harness and allows the driver full control of the exhaust valve whenever they want. For too long enthusiasts have had to pay too much for command of their exhaust. We solve that issue. These controllers connect to the vacuum solenoid in the trunk to provide the driver control over their exhaust flap. Before purchasing please ensure your car has a VACUUM style exhaust valve. These DO NOT fit on electronic valves. 100% REVERSABLE, ALWAYS ABLE TO RETURN TO STOCK AT ANY TIME In regards to fitment, many BMWs have the exhaust flap and our controller can be used. In the pictures below you will find the control unit. If your car has this, then this product will fit your car. BMW Fitments: (Consult description) 1 Series E82 / E88 (08-13) > 135i 3 Series E90 / E92 / E93 (07-13) > 335i 5 Series E60 / E61 (04-10) > 545i E60 / E61 (04-10) > 550i 5 Series F10 / F11 (11-16) > 528i F10 / F11 (11-16) > 528i xDrive F10 / F11 (11-16) > 550i F10 / F11 (11-16) > 550i xDrive F10 / F11 (11-16) > M5 (2013-2016) 6 Series F12 / F13 (12-18) > 650i F12 / F13 (12-18) > 650i xDrive F12 / F13 (12-18) > M6 7 Series F01 / F02 (2009+) > 750Li F01 / F02 (2009+) > 750Li xDrive F01 / F02 (2009+) > 760Li X Series E70 X5 (07-13) > X5 M E70 X5 (07-13) > X5 xDrive35i X Series E71 X6 (08-14) > X6 M E71 X6 (08-14) > X6 xDrive35i E71 X6 (08-14) > X6 xDrive50i X Series E84 X1 (2013-2015) > X1 28i E84 X1 (2013-2015) > X1 28i xDrive E84 X1 (2013-2015) > X1 35i xDrive X Series F25 X3 (2011-2017) > X3 xDrive35i X Series F26 X4 (2015-2018) > X4 28i xDrive F26 X4 (2015-2018) > X4 35i xDrive Z Series E89 Z4 (2009-2016) > Z4 sDrive28i E89 Z4 (2009-2016) > Z4 sDrive35i E89 Z4 (2009-2016) > Z4 sDrive35is