In the event that the modernization of the air intake system requires the removal of the standard air flow sensor, you will find this hinged adapter for the idle valve useful. Diameter of a branch pipe under a hose - 16 mm.

Recommended ABS (or TPU) printing, mechanical and chemical post-processing. This housing is designed for universal valve sizes. About a dozen units have been successfully operated on cars with c20xe engines for more than a year.

I recommend after printing to align the irregularities of the plane under the valve gasket. Use 240 grit sandpaper, then 500 or 1600 grit on glass and with added water.

Feel free to write to me if you need additional variants of shape or part size for your particular variant. I will gladly complete the additional options.