Toy 10 Posted November 19, 2019 I am replacing the front and rear suspension on my 1995 VR6 Corrado to be standard set up and have been asked what is the stiffness of the springs I require. I have been told by AutoDoc that the stiffness could be grey, orange or brown and the rear: green-orange or yellow-orange. Can anyone advise me what the standard spring stiffness for the Storm was? They have requested OEM of the springs and specify colour coding, huge thanks. Quote Share this post Link to post Share on other sites