I am in the market for a high quality bypass filter. My truck has 360,000km on it and i'm looking to keep her going. I have looked at a few. Amsoil Dual bypass PPE Centrifugal Filter FS-2500 I have noticed a couple disadvantages with each. Amsoil one is that the filters reduce oil pressure, and having to make a bracket. PPE is the price $500+, and that you have to remove your stock oil filler, and i've been unable to find where you get the oil pressure from? Also that it only works when your driving not when your idling. FS-2500, you have to buy filters through them. Not off the shelf filter. Price $700 Which one would you recommend, I'm leaning towards the AmsOil bypass and using the MadJack bracket and call it a day. But i like the idea of how much soot the centrifugal filter gets out, i drive 70km a day on the highway so it would give sufficient time to run at optimum psi. What would be ideal, would be to have both, the amsoil and the ppe and run them in tandem, but i do not want to lower my oil pressure, i was curious if there was a way to make it so that you could run both but only turn on the centrifugal one when on the highway, so like once the oil pressure gets high enough it would open a pressure valve and shoot it through the centrifugal filter. One last question, with the centrifugal filter being able to filter out anything less then 1 micron, would it be able to filter out the useful additives in your oil? Chevy Duramax GAS Dual Bypass Engine OIL Filter KIT Free Shipping | eBay this appears to be the exact same as the AmsOil one, but no name branded.