Definite reduction in noise and heat. Here’s the link to it: FatMat Self-Adhesive Rattletrap Sound Deadener Bulk Pack with Install Kit - 50 Sq Ft x 80 mil Thick https://www.amazon.com/dp/B003TUNRGM/ref=cm_sw_r_cp_api_glt_fabc_NDW5GW95PTE3AMPQZ30R