From their install instructions. I direct messaged to ask also.Probably better to ask in the UPP thread or ask them direct. Most of us probably won't know.
"This product carries a lifetime warranty against mechanical failure or corrosion. It can be exchanged for an identical item or a similar item as determined by Unplugged Performance. It may not be returned for cash or credit. There is no warranty regarding surface imperfections or aesthetic damage incurred during regular use, and/or damage to the brackets from an impact or other unusual driving circumstance."