D Series Pro Series Intake Manifold For Honda D15 D16 Civic Si CRX EG EK Del SolD Series Pro Series Intake Manifold For Honda D15 D16 Civic Si CRX EG EK Del Sol Type: Intake Manifold Material: Cast Aluminum Fuel Type: Gasoline Description: Our cast aluminum Intake Manifold for Hondas D series engines are a direct fit replacement for most D series engines and are compatible with all factory sensors. Our Intake Manifolds offer horsepower and torque gains greater than competitors manifolds but without compromising mid range power