If you aren't planning on lowering your car the KYB's will do fine.
All I know is I've heard a few people say their KYB's didn't hold up with lowered springs. One of them was a tech guy at Kenny Brown Performance. He said he put brand new KYB's on with Ford C springs and they only lasted 8 months.
That price you got from Summit is the norm, but if you go to the web link I posted in my previous post you'll get a lot better price. The phone number is 800-683-2890. I think they sell KYB's too so they probably have a better price on them as well.
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