Cast short aluminium elbow 2.5" / 63,5 mm elbow for small spaces. BOOST Products 90° Aluminium Cast Elbow 2.50" / 63mm - tight radius Tight aluminum cast elbow pipe with od Ø63mm (2.50") BOOST Products cast aluminum arch with tight radius outer diameter: 63mm (2.50") neutral chamfer: 50mm Radius This cast aluminum elbow is perfect for tight/ minimal space conditions, e.g. in the engine compartment at the turbocharger compressor outlet or intercooler connections, throttle valves, etc.. The cast aluminum elbow has an extremely small radius and even has beads on both sides to enable hose installation with silicone hoses. The bends have already been successfully tested in motorsport up to 3.5 bar boost pressure. Attention: The cast aluminum arches may contain small burrs and casting residues. Please grind these away with a file before installation. The pictures with silicone hoses and clamps are for illustration purposes only and are not part of the article!