So I recently purchased BC coilovers with offset topmounts. I lowered my car another inch and a half from when I had my Ksports. I do not have pictures right now but it was decently low. The first ride in it I hit a small bump and heard a hard knock and the impact was hard. I first thought it was my shocks in the coils bottoming out but that wasn't the case. The threads are maxed out for lowness, and I did not mess with preload. The coils are settled now and still every little bump I have to deal with the hard hitting over them. Ican not figure out what the problem is. At first I thought it was the UCAs hitting the UCA bracket area (considering when you lower the car, all of the suspension components move upwards toward the top of the inner fender area/less suspension travel) but I can't find any marks of hitting any places. The tophat nuts are tightened again also. Any help would be appreciated. I do not want to buy things I don't need. I had to raise my car again till I figure it out. I just don't understand how most people run very very low with stock suspension components and no hitting issues. Help me out please!