How exactly does it do anything when it just routes back in 2" away. My other vehicles it came out of the valve cover. What's the sense. I've heard of people placing a filter inline to catch oil. How can it do this when it's catching intake air and sucking it right back in? Am I missing something?

 

I belive that where the valve is leads to the bottom of the maifold into the lifter valey, and vents back into the intake via the vacuum port the hose loops back into.

 

You use the filter in the line off the right valve cover that runs to the TB. Works great on my LS1, still need to do it on my LT1. I get a teaspoon of oil about every 300 miles on my C5, but the engine is not broke in yet.

 

That's what I was thinking, but I ran a search and found another person running the filter inline on the driver side PCV line, it was a 95 with the line running under the throttle body. He said the line on the passenger is clean metered air from the throttle body. So what's correct? Which line to put the filter on?