This Cosworth DFS Plenum Assembly is a complete set with all 16 injectors, perfect for Lola March Indy 500 USAC races. Made in the United Kingdom, this performance part is a must-have for any racing enthusiast looking to improve their engine and component performance. The brand Cosworth is well-known for its high-quality racing products, and this plenum assembly is no exception. With its precise design and durable construction, this plenum assembly is sure to provide reliable and consistent performance during any race. Whether you're a seasoned racer or just starting out, this Cosworth DFS Plenum Assembly is an excellent choice for anyone looking to improve their racing game.