Be wary of the AC lift.. I have their upper control arms and they are WAY to long. I have not been able to get the alignment to where AC says it should be (camber is over a degree out). They were suppose to have some new "custom shorter" arms for me but it is going on 5 weeks and still no arms.

And I am not the only person who has had this problem. There are people here that have had to either switch to the Calmini arms or have AC make the "custom" arms for them as well.

As for the SLR lift.. I have no knowldge of how its construction and performance is compaired to the other two.

Calmini is another story. I have not only seen their lift installed but have compaired their craftmanship side by side with the AC lift. Not only are the Calmini components designed better but the overall fit and finish is far superior to that of the AC components.

Something else to consider between the Calmini and AC lifts.. Calmini manufactures their lift while AC manupackages theirs. So Calmini has better control over the quality.

Happy hunting..