I broke that plastic piece that runs along the front part of the undercarriage of the car, and now it hangs a little down and catches on speed bumps and such. I took it in to my local Toyota Dealer and the dealer said a new plastic piece would cost $345, but he could jerry rig it for $40 and if it didn't work he'd apply that $40 to the cost of the re-do. Well, it didn't work, this was a few days ago and as soon as I hit 75 on the freeway, it came down and started dragging. Any ideas on what I should do? Is that piece even necessary or will not having it significantly decrease my mpg? Do you think they'd have one on the local pick-a-part? Could I just bolt on a large piece of graphite to the plastic that's still stable down there? It's up near the front and the holes where the clips attach are busted except for one of them.