This is my first upload and hope that I can provide some aid for similar printers as me. I have a 99 Suburban with a 454 and the thing just won't stay warm in the harsh winter I live in. So far, it's been -40 degrees and getting the heater to work at that temperature is as hopeless. So I printed this to help block the cold air from cooling the engine. It worked great! It stays at or around 180 degrees despite the cold air hitting it. Don't forget, it's held in place with zip ties for ease.