Material: 304 stainless steel. Inlet Flange Style: 2.5" (63.5mm ID) V band flange. We will do our best to solve it and satisfy you.
US 4-1 4 Cylinder Manifold Header Merge Collector Stainless Steel 2.5" ID V Band
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US 4-1 4 Cylinder Manifold Header Merge Collector Stainless Steel 2.5" V-Band