Try using the search feature. You find soooo much info on this subject!
Eibachs are lower in the rear than the H&R's but the H&R's are lower in the front. Comparing my SVT with another SVT w/H&R's we found this: H&R's in front were .25" lower and 1" higher in the rear than mine w/Eibachs. Both of us had Koni's.
Both perform very well but some have complained that the H&R's do not handle potholes as well as the Eibach's. The Eibachs are probably slightly softer than the H&R's. With most people it comes down to which spring gives the car the nicest look in their perspective.
This is my car with Koni/Eibach suspension.
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http://albums.photopoint.com/j/View?u=1479008&a=12961207&p=48681316&Sequence=1&res=high[/img]
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http://albums.photopoint.com/j/View?u=1479008&a=12961207&p=48681312&Sequence=1&res=high[/img]
