Set of 4. Will lift D1 2" and D2 2.5"...at least thats what my experience was. They have about 10K on them. Always rode excellent off road and reasonably well on road. They do get a little twitchy on road under heavy load, but that is characteristic of these linear-rate springs. Easy to install.
$70 + shipping for all 4.
$70 + shipping for all 4.