Here is a big write up regarding how the Nivomat Shocks that were OEM equipment on 05-07 SRT8's work...thought it may be of intrest to some. It is written by the engineer that designed them for Sachs. http://www.cadillacfaq.com/faq/answers/pdf/nivomat.pdf
LOL - I actually have that pdf saved on my computer. They are ingenious from an enineering standpoint. But why they felt the need to put them on an SRT-8, I'll never understand.
