These motor mount inserts are designed for popular sporty and performance front - wheel drive vehicles. They're perfect for those who participate in sport compact competitions or simply want to enhance their vehicle's performance. The inserts are made of Hyper - Flex(TM) polyurethane, which is resistant to under - vehicle fluid oils, coolants, and road contaminants. They help reduce wheel hop and traction loss, and prevent damage to other vehicle components. Whether you're a racing enthusiast or just looking to improve your daily drive, these inserts are a great choice.