63-51mm Reducing Elbow Silicone Hose Colour:Blue Hoses Straight reducer hoses are 100mm

Straight reducer hoses are 100mm long up to 57mm diameter and 125mm long from 60mm to 102mm

full step by step installation instructions provided

Inside diameter: 13mm (1/2")

The Forge direct replacement blow-off valve is designed to be a more durable and performance oriented valve than the OEM unit

63-51mm Reducing Elbow Silicone Hose Colour:Blue Hoses Straight reducer hoses are 100mm63 51mm Reducing Elbow Silicone Hose Technical Details All elbows have equal leg lengths of 63mm up to 12mm diameter, 100mm from 13mm diameter up to 57mm, and 125mm from 60mm diameter up to 102mm diameter. From 6mm diameter up to 48mm diameter are of 3 ply construction, and a wall thickness of 3. 5mm. From 49mm diameter up to 83mm diameter are of 4 ply construction, and a wall thickness of 5mm. From 84mm diameter up to 102mm diameter are 5 ply