Ceramic fiber products can significantly enhance engine performance by providing superior thermal insulation and resistance to high temperatures. They reduce heat loss, which can improve fuel efficiency and increase power output. Additionally, ceramic fibers can withstand extreme temperatures without degrading, which extends engine life and reduces the need for maintenance. They also help in reducing the weight of the engine components, which can improve overall vehicle performance. However, it's crucial to ensure proper installation and compatibility with the engine materials to avoid any adverse effects.