Just wanted to let all the boss owners that are on the fence about getting a oil separator that they really work well and the boss engine will pass surprising amount of oil in short time. I purchased a JLT unit and was impressed with the quality and ease of installation as it uses OEM ford hoses and connectors. My engine only had 400 miles and when I took off the factory lines to install the JLT I could see oil in it. I checked it less than 200 miles later and sure enough there was oil in the bottom of the can. I was surprised how well these work.