BD Diesel 17-20 Ford Ecoboost 3.5L Exhaust Manifold (Passenger Side)

BD Diesel addressed the common issue of exhaust manifold bolt failures by adding two extra bolt holes and using longer studs and spacers. This design helps the manifold handle thermal expansion better, preventing the bolts from breaking off. They also engineered it for improved flow, giving you a 16% increase over the stock manifold. The manifold itself is cast from high-silicon ductile iron, which is a thicker and more robust material than stock, helping to resist warping and ensuring it holds up over time.

This kit comes with everything you need to get it installed, including new longer bolts, spacers, and gaskets. If you're looking to replace a failing manifold or want a more durable and better-flowing option for your EcoBoost, this BD Diesel unit is a solid choice.