Theres ALWAYS alot of discussion when it comes to oil separators; from deleting the PCV altogether, to breathers and catch cans, to rerouted PCV systems and an actual oil separator. This discussion is about rerouting the PCV and installing a separator. It's what I did with my truck, and it's worked pretty well--I honestly think its been far Better than anything else so far, except the L&S unit, and I'd STILL install that on my rerouting scheme. So, without further ado, the reasoning behind rerouting and diagrams: Go with the L&S separator kit, it's the best one out there and the only one that truly returns the oil to the crankcase. *Also, it's probably a good idea to reroute the PCV system to something like this: This is my setup as it stands, the separator isn't all that great, but it's better than the stock setup: The L&S will be even better because it'll pull all the oil from the airstream and dump it back into the valve cover thru the oil cap. You don't have to have the check valve, but it does stop any flow reversal under boost, which is why you see oil in the intake boot. Nice article on the L&S: L&S Automotive Performance - Oil Separator Article Better writeup by me at NLOC (What PCV do you use-Dime Mod-intake oiling - The National Lightning Owners Club Inc) L&S has the best setup so far, and the cost isn't near what it costs us in time and materials pulling the blowers to clean out the intercooler and other bits. And I wouldn't think twice about running the L&S with my routing scheme (which has been working on my rig since early 2007, nonstop).* And what's y'alls time worth?? hell, what's a blown motor worth?