These Manley pistons are perfect for car enthusiasts who want to upgrade their BMW N54B30 engines. Whether you're into racing or just want better daily driving performance, these pistons are a great choice. They're made with high - quality 2618 alloy and have unique features that help generate more power while being gentle on the cylinder walls. As for the technical side, they are part of the 32cc Platinum Series Dish Piston Set, designed to fit your engine precisely and enhance its overall function.