DEI Under Hood Thermal Acoustic Lining - BlackBrand DEI Part Number 50129 Category Fabrication Heat Shields Condition Brand New Original Manufacturer Packaging DEI Under Hood(TM) Thermal Acoustic Lining was designed primarily for the engine compartment as a way to greatly reduce heat and noise with an easy peel and stick product anyone can install. Engine heat and noise often is a problem with today's modified vehicles packed with high performance components. The use of Under Hood(TM) Thermal