I just did a test on my Navara 2.3 twin turbo. Whilst not as in depth and accurate as Mann would have done but it gives you an Idea. Factory = Idle .26 inH2O 3000RPM -2.8 inH2O Provent 200 = Idle 1.8 inH2O 3000RPM .25 inH2o Filter was oil soaked in the comparison.
Where is the result?
What were the test results before and after installing the catch can? i.e millibar?
I just did a test on my Navara 2.3 twin turbo. Whilst not as in depth and accurate as Mann would have done but it gives you an Idea.
Factory = Idle .26 inH2O 3000RPM -2.8 inH2O
Provent 200 = Idle 1.8 inH2O 3000RPM .25 inH2o
Filter was oil soaked in the comparison.