After reading so much here on by-pass systems and their advantages I went ahead and installed an Amsoil BMK-13 Dual mount on my 06 F-150 today. So my question is this, I already drove the truck a few miles an everything appears to me ok. I have no leaks and my the oil pressure gauge that came with my truck says my pressure is fine. So what I'd like to know is if this system causes you oil pressure to drop because I'm not sure if Ford installed the oil pressure sensor before or after the FF? It's already dark here but tomorrow I will post some pictures for all of you to see the set-up but overall everything came out great. The only thing that hung me up for a while is that it took me longer to put together the hoses that everything else combined. Thanks in advance!