Cobra head 2,5 A custom design hose by do88, made to make it possible to deliver a great air flow when the space are so limited that a regular 90° hose takes to much space. In very tight places the narrow radius comes in handy and our special design of this hose deliver great in terms of airflow. Have a look at the pictures with drawings that shows the narrow design of this hose! To avoid the hose to collapse under vacuum it´s made with five layers of reinforcement in the most critical areas. A loss in airflow of not more than 10 % compared to a conventional 90 ° hose is hard to beat, given its slim design. Intended use are air intake applications, air filter, turbo inlets, compressor inlets and more. The hose can also withstand lower positive pressures but might then not be able to keep its flat shape.   Bend: 90 ° Inner diameter (mm): 63 mm Inner diameter (inch): 2 1/2 " Color: Black Wall thickness: 5 mm Temperature range: -40 to +180 °C Outer diameter: 73 mm Reinforcement: 4-5 layer