Ive had them on my car 7-8 months and got it quite low and there not to stiff, I have it on the ramp all the time, had it up last weekend, and no leaks at all, no knocks when driving at all either, the rears still look like new but the fronts have started to corrode, (disscoulor)abit but can easily be polished off,
You do get what u pay for tho, a good mate or mine (Aaron) has kw v 1s on his s3 and there great, if my budget could reach I'd defoo get some
And after my ko4 build there next o
The list but my FKs are fine for now, I had to get them for a MOT so if they only last a year I'll still be happy,
Hope this helps a little