AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2005-2011 BMW 3 Series 320i (E9X) AWD 29 Kg/mm Spring Rate -

29 Kg/mm Spring Rate - Rear 4

8 Kg/mm Approximate Drop - Front 1

2015 Mercedes-Benz SLK 55 AMG

Left-right-hand thread adjustment turn-buckle nut allows for easy on-car adjustment

1997 BMW 3 Series 316i Touring (E36)

AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2005-2011 BMW 3 Series 320i (E9X) AWD 29 Kg/mm Spring Rate -The 5100 Series shock absorbers for the 2005 2011 BMW 3 Series 320i (E9X) utilize non inverted high performance monotube technology. In the past, these were known as the 4100 series. Monotube design shocks absorbers give your car a better performance than the standard twin tube design, the gas pressure is separated by a floating piston, and eliminates cavitation and airation within the oil chamber. The 5100 Series shocks allow rebound adjustment with