I may be the odd man out here but I’ve had Icon 2.5, their upper control arm, and their leaf springs. They were fun while they lasted but the fronts blew around 10k and the rears went around 13-14K. They leaked very early on and started making a awful thud noise. I’m no expert but I almost wonder if extreme cold and ice wrecked them. The upper control arm and leaf springs have been solid.
I replaced them with 6112 and 5160s and have actually liked them so far. I ordered the heavier king spring (650lb). The 5160’s are definitely the weak link I that setup.
I think the dislike for bilsteins and Icons are because they’re digressive valving. From my understanding, you get the real performance when you’re running them at a little higher speeds. I really noticed that with the icons.
I’m going to try the kings after I trash the bilsteins.