AST Suspension 5100 Series Coilovers (Includes Front Top Mounts Only) - 2005-2012 BMW 3 Series 330d (E9X) 100NX Our engineers have developed a

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AST Suspension 5100 Series Coilovers (Includes Front Top Mounts Only) - 2005-2012 BMW 3 Series 330d (E9X) 100NX Our engineers have developed aThe 5100 Series shock absorbers for the 2005 2012 BMW 3 Series 330d (E9X) utilize inverted upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment. The 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension