The only issue i had was that the bolts that came with the bar had a different tread than the stock bolts so i just ended up reusing the stock tow hook bolts. As for whether it helps with rigidity i dont know because i did this mod at the same time i did other suspension mods, but when i was talking with Steve Millen he seemed very impressed with the bar saying how it was intresting how it would stiffen up the chasis at ther furthest possible point.