They're small and shaped like a top, and made out of transparent plastic. Boost controllers come with them, I need one for my boost gauge. Ever since I installed my defi link II gauge it has oscillated at WOT, like +/- 0.25 psi and I have been meaning to get it fixed forever.

Anyone know where to find one?

 

I'm not sure where you'd find the filter, but I used a carburetor jet in the line. worked great.

 

Not a filter but I used a vacuum line restrictor that I pick up at a local checkers, works great with my pfs gauge.

 

The purpose is to keep fumes from damaging the electronics. It will do nothing for boost fluctuation on the guage. Go with the carb jet.

 

Mr. Huk has spoken, carb jet it is

 

egauges.com might also have that jammie. i could use one too.

 

If all you need is a filter just tee the boost gauge into the MAP sensor line between the stock filter and the MAP sensor. IMO this is the proper location to read boost because this is the same location the ECU reads boost

 

are u sure u can t that???(map sensor)

 

Rich - go to a RC Car store. The fuel lines for gas RC car's are vacuum lines essentially, these cars have in line filters that would be perfect for what you want.

 

i am going to use one of the filters that goes to the map sensor(i have an extra one). Mainly cause sometimes the vac line causes condensation in my boost gauge

 

Yep. The MAP doesn't care.