Front: Has a problem where it receives power but sometimes it does not think that the quick disconnect is connected so it does not warm up. Should be an easy fix if you can do it yourself or ship it to woodcraft they might charge 100 or probably less to fix it. Happened last track-day No holes and tears Rear: Works perfect tested all 4 temps last trackday no issues. No holes and tears Images should be viewed on Facebook Marketplace: https://www.facebook.com/marketplace/item/459794497934870/ Willing to Ship Buyer Pays shipping