Important Details

This custom fitting has a built-in vacuum restrictor in the center. A vacuum restrictor is essential to provide a clean signal to the boost gauge. If a mechanical boost gauge is installed on a turbo car without a vacuum restrictor the gauge will produce a buzzing noise. This fitting was designed to be used on TDI VW engines that don't use a t-fitting. It can also be used any boost gauge installation using .170" - .1875" tubing.

This fitting is included in our TDI Boost Gauge Tubing Kit

Fitting Details
.1875" barbs
built-in vacuum restrictor