AST Suspension 5200 Series Coilovers - 2006-2008 BMW Z4 3.0si Coupe/Convertible (E85/E86) 335i xDrive All components are included to

All components are included to have a properly functioning Air Ride System

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AST Suspension 5200 Series Coilovers - 2006-2008 BMW Z4 3.0si Coupe/Convertible (E85/E86) 335i xDrive All components are included toThe 5200 Series for the 2006 2008 BMW Z4 3. 0si Coupe Convertible (E85 E86) are 2 way adjustable shock absorbers which are based upon competition 3 way adjustable shock absorbers. The 5200 shock absorbers are adjustable in compression and rebound. The design of the compression adjuster is an evolution of the compression adjuster we provided for the American Grand Am series for the last few years. The 5200 shock absorbers were designed to achieve a