i was surfing mn12performance.com and noticed this item. i remember we peeled what was left of the stock ones off my stock springs when we installed the eibachs but dont remmeber putting them back in. are they necessary? should i not be running without them?
if I'm thinking about the same thing, you already have 'em. The problem is that the stock ones degrade and get thinner over time making it look like the back of the car is sitting lower by a bit. It wouldn't hurt to put those in.