Aftermarket rear spring brand differences? (Page 2/2) IMSA GT APR 09, 08:36 PM quote Originally posted by Kitskaboodle: Eibach’s can be red? Ok, I stand corrected. After all, you’re the guru. 😀 Although, all the ones I’ve ever seen are black with the Eibach logo in gloss white lettering? Maybe the earlier ones were red? Kit Guru is correct. The red ones are their Sport Line series and the Black ones are the Pro Series.