I had purchased a K-member from Overkill Racecars a year ago, and spent all of last season trying to make it work. The geometry is terrible. I have already broken the k-member, had to re-weld and gusset it to make it hold. At the top end at 130mph, when you're getting on the brake to slow the car down, I would get a severely violent shake and vibration in the steering wheel, to the point I thought I was going to break something. These k-members, in my opinion, are going to get someone killed. I am in the process now of replacing the ENTIRE system and I WILL not try to resell it to someone else. These K-Members are junk! And when you have a problem, forget it. The owner of Overkill will not help you.