PSS9 PERFORMANCE SUSPENSION KIT. 9 DAMPING ADJUSTMENTS. THE SYSTEM INCLUDES ADJUSTABLE MONOTUBE GAS SHOCKS WITH 9 PRECISION COMPRESSION AND REBOUND SETTINGS FROM COMFORT TO COMPETITION FRONT AND REAR.
Opened the box to take the picture to make sure everything was there. Never installed. Decided they won't be a good idea considering Atlanta potholes.
They sell for $1849 from Turner Motorsport.
They'll work on all E9x cars I believe. Check compatibility to make sure. Part number Bilstein GM5-C051.
Make me a reasonable offer. Looking for around $1650 shipped OBO. The box weighs 57 lbs.