This is a direct replacement for the turbo inlet hose (part number 13717597586) found on BMW 1 series (F20, F21) & 3 series (F30, F31, F35) cars equipped the 1.6 turbocharged N13 engine. The OEM hose is prone to splitting at the turbo end as you can see from the pictures.
Our version of the hose is constructed from a 5-ply polyester reinforced silicone with a wire wound core for added strength. The hose has smooth inner walls and a slightly enlarged internal volume to promote increased airflow.
The hose also features two CNC machined connectors inplace of the OEM plastic ones which can also be a weak point.
The hose can be used as a direct replacement in conjunction with the standard air box or with an aftermarket induction kit.