SSI Series Intake Manifold Utilizing over fifteen years of EFI only experience – our talented engineers came -up with this revolutionary manifold which is about to rewrite the chapter of performance. With a lower manifold that features an open runner design for cooler intake air mixture and identical runner shapes for equal distribution and an upper manifold featuring high torque twin plenums for maximum street performance. Topped with beautiful anodized aluminum high-flow fuel rails and a durable Metallic-charcoal powdercoat finish – this new SSI Series manifold sends the competition back to the drawing board.