AST Suspension 5100 Series Coilovers (Includes Front Top Mounts Only) (True Coilover) - 2005-2012 Porsche 911 3.8 4WD (997) voodoo13-tension-rods 16 Kg/mm (457 lbs/in) Spring

16 Kg/mm (457 lbs/in) Spring Rates - Rear Progressive Quantity Full Set (Front & Rear) Vehicle Fitment

GT (S197) leave much to be desired and contribute to the inherent traction and wheel hop problems from the factory

1991 Geo Metro Base

2016 BMW Coupe M235i/M240i 2WD (w/o EDC)

2009 BMW M6

AST Suspension 5100 Series Coilovers (Includes Front Top Mounts Only) (True Coilover) - 2005-2012 Porsche 911 3.8 4WD (997) voodoo13-tension-rods 16 Kg/mm (457 lbs/in) SpringThe 5100 Series shock absorbers for the 2005 2012 Porsche 911 3. 8 4WD (997) 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