I had to die grind out slightly more, maybe 4mm each side, but replaced the very fine washers with thicker stainless items at the front holes, which covers the ground metal perfectly. The seats function 100% but they travel further forward than the standard slider. I hit the trans tunnel with the front edge of the slider when at full forward on the passanger side (and put a small tear in the carpet
). No touching on door side and the seat belt pre-tensioner just brushes the carpet when sliding forward... Damn comfortable and they really hold ya in there when cornering.. bliss