Universal aluminum pipe for the construction of intake systems Dimensions: Diameter (D): 51 mm, Angle: 90 degrees Length (L): 34 cm Total length of the pipe: 60 cm We also offer a large selection of silicones. Universal aluminum pipe for the construction of intake systems. Dimensions: Diameter (D): 51 mm, Angle: 90 degrees Length (L): 34 cm Total length of the pipe: 60 cm We also offer a large selection of silicones.