AST Lowering Springs For BMW 6 645Ci/650i/635D 2004-01/2011, Front 30 , Rear 25 Brand_AIRTEC 4 degree ratcheting arc

4 degree ratcheting arc

providing assurance and peace of mind for professional and enthusiast drivers alike

BMW F20/F21 M135i LCI (2015+ facelift)

There's no extra charge for features we consider standard issue on a high-performance turbocharger

AST Lowering Springs For BMW 6 645Ci/650i/635D 2004-01/2011, Front 30 , Rear 25 Brand_AIRTEC 4 degree ratcheting arcThe AST Lowering Springs are engineered specifically for the BMW 6 Series models 645Ci, 650i, and 635D from 2004 01 to 2011, providing a precise lowering of 30 mm at the front and 25 mm at the rear. Manufactured using advanced cold coiling technology on premium Wafios coiling machines, these springs ensure superior durability and consistent performance. Designed to lower the vehicles center of gravity, they enhance handling dynamics and stability