These near-bullet proof manifolds are made from thick wall 3mm stainless steel steam pipe. They offer dual-drilled T3 and T4 turbo flange, with 2-bolt wastegate port (complete with block off plate if you want to run internal gate). These are a top mount manifold for the ST20DET found in the S13, S14 and S15 silvias.
Don’t confuse these with the cheaper tubular manifolds – this will last FAR longer due to its superior construction. Supplied with gaskets as shown.