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Profile: Steed Speed Advanced manufactures & supplies turbo manifolds and blow off valves. Our wide range of products include E36 M3 T4 turbo manifolds, E36 M3 T3 turbo manifolds, Chevy 4.2 turbo manifolds, E46 M3 T4 turbo manifolds, E46 T3 turbo manifolds, Honda D16 turbo manifolds, Honda B16 turbo manifolds, Honda D17 turbo manifolds, 22R turbo manifolds, 3rz turbo manifolds, Mazdaspeed protege turbo manifolds, Mazdaspeed 3 turbo manifolds, Mazdaspeed 6 turbo manifolds and Honda S2000 turbo manifolds. Our E36 M3 turbo manifold is of undermount style and has been proven to withstand over 1000 hp. The manifold is flanged for a T4 turbo. This has a separate flange which bolts to the head. The main body of the manifold is then attached to the flange with 12mm socket Allen screws and sealed with copper gaskets. This construction makes the manifold very easy to install.