This is just my experience with the 2 inch ECCPP spacer. Hope it helps someone else. a cheaper strut extension on my truck. The box arrived without instructions. Since these are spacers it's pretty clear what you need to do. The problem is that they didn't send the recommended torque information. So my deductive reasoning told me to tighten them slightly under what my works bike uses, 140 pounds. Crack in the strut. And good thing I did, because then I double-checked the rest and found that three of the four panels were cracked. Earth. The seller was less than helpful when I requested a refund. I understand that we are currently facing a difficult situation (Covid 19) worldwide, but after several attempts to solve the problem, I realized that this is a moot point. I ended up buying a new set of discs to get the look I wanted. Instead of. One less component to worry about. There are quality spacers out there like Supreme Suspension (aluminum billet) but research them beforehand. I was lucky enough to see it before I made the mistake of riding her. Hope this helped and have a nice day.