I call it a factory defect. Weather it is the thin manifolds, small bolts or the cheap metal being used in them, it all falls on the pencil pushers. Pay it now or a lot more later. When customers pay 60-90,000 for a vehicle, you would think you are getting the best available. The CEO's needs to rethink their priorities. I bought a $7,000 patio set and the seat bolts, broke on a couple and I removed them all and replaced them with better bolts, before any more broke. I will not buy from that manufacture again. Just over a few cheap bolts. I don't get it, for you pencil pushers. Years ago I bought a cooking set with a 60 year guarantee and two years later a handle came off of one. Took me 6 months to get a replacement because they said it was fought it broke. The reason it broke is because the bolt in the handle was a cheap, l non-stainless steel one and in two years it rusted and snapped. I had to prove my findings to them. All products made today have a week spot somewhere, so they can sell again. Cars included. Wait till the EV cars batteries need replacing!!!!!