A few years back I added an additional H20 8 micron filter and 2 micron filter inline from XX-Fuel (I kept the stock filter, too). Their kit installs under the driver's side floor using a really nice mount. I really like the system, but just tried to contact them for additional filters. They appear to be out of business. No webpage, no phone #, etc. Do all screw on fuel filters have the same thread size? Anybody recommend a particular brand of inline fuel filters? Thanks in advance