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 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 & MK5 boost gauge tubing kits
Fitting Details
- .1875" barbs
- Built-in vacuum restrictor
- Glass filled black nylon
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