shorter end links help your front sway bar work better when you lower your car. I put them on my GT, ordered them off the internet, I recently noticed the Auto Zone Stores have them in stock, unreal, they actually seem to have some good useful items in those places now, they were Energy Suspension too which is as good as you can get I believe. Your car should already have spring isolators on it, thing is sometimes they are stuck so well on your stock springs they might not come off, also they are rubber, the aftermarket ones are better. I got used front Steeda springs and they had stock rubber isolators stuck on them so good ( I swear I think they are glued) I couldnt' get them off to use my new ones. LOL. :-? :mrgreen: