Vibrant Mild Steel Exhaust Manifold Flange for Nissan RB25/RB26 motor 1/2in ThickBrand Vibrant Part Number 14625 Category Fabrication Flanges Condition Brand New Original Manufacturer Packaging Vibrant Performance has developed one of the largest offerings of Exhaust Manifold Flanges in the industry. All of our Exhaust Manifold Flanges have had their exhaust port size optimized for either standard wall round tubing or Schedule 10 weld fittings. California Prop 65 Warning: This product can expose you to chemicals known to the State