Quote Originally Posted by 9000revs View Post
Wow, cool option, did not know. So GC can provide Eibach Pro-Kit with Koni shocks it seems. What are the advantages of buying GC over these separately? Thanks.
For future search reference...The Eibach springs provided by Ground Control are not pro kit springs. They are the ERS springs, which are a more universal line of springs in regards to diameter, length, and spring rate. They are also warrantied for life against sagging. All GC brings to the table is a fancy anodized red sleeve over.

A cheaper way to go about this setup is to get a sleeve over for short money then source some used ERS springs of your choice from a racing forum. They swap out springs all the time adjusting their setups. Generally they sell for $30/ea