Drag Specialties gas caps

[03BigPit]

I have drag specialties pop up gas caps on my 03 pitbull. How do I know if the are vented or not?

 

[BadBrad]

I thought it would always list it as vented in the add.

 

[03BigPit]

Brad,
When I go to Drag Specialties it lists these caps as both vented and non vented. They show this picture of what I have but doesn't state if it is vented or not

 

[CCRainman]

I would not use those. I had a set on mine and they leaked all the time. If you look on the underside of the cap they are designed differently. There is like a diaphram on the vented ones if my memory serves me correctly.

 

[1extremeskier]

May be dumb, but when I click on embedded jpg it says non vented

 

[03BigPit]

The embedded jpg does say non vented but it was what I pulled up from their site (good catch).

 

[05 old dog]

somebody got a link to these? nice cap.