This flywheel is perfect for car enthusiasts who love to hit the streets or the race track. Whether you're commuting daily or competing in races, it can significantly improve your driving experience. It's designed for a variety of Volkswagen and Audi models from specific years, as listed in the product details. In terms of construction, it features a heat - treated forging and induction - hardened ring gears, which not only make it strong and durable but also ensure a long service life. The one - piece design helps in efficient heat transfer and reduces the chances of failure.