Originally Posted by n21k
What are the difference between Variant 1, 2 & 3? Is it overkill if someone install Variant 3 on E90 for daily drive?
Here are the differences:
KW V1 - Height adjustable only
KW V2 - Height & Rebound adjustable
KW V3 - Height, Reboung & Compression adjustable
All KW coilovers system has the Inox technology which prevents the shock body from rusting.
For daily driving purposes, I recommend the KW V1. If you are doing more work to the car (performance, auto-cross, sometimes track, etc) then I recommend the V2. For KW V3, it is still a coilovers system you can drive on the street, but the main purpose is for track use.
Hope this answers your question. Feel free to contact me if you have any other questions.