Removed the filter on my FG today. Pretty easy once you have removed the air box. Didn't have a 15/16th so I had to use a shifter, which worked well. I found that it wasn't that tight to turn out and remove. Pulled the filter out and it looked pretty clean. Blocked one end and put the other on my mouth and found it really hard to blow through it, so having it removed must make it a lot easier for the oil to pass through the line. Probably took around 25mins or so Now can rest easy that the turbo is getting plenty of oil.