I just come across this issue myself. Last fall I put long tubes and full exhaust on my car before putting it up for the winter. Pulled it out this year and switched it over to e85 with a PBD tune and on cold start I see smoke and definitely oil smell coming out of the exhaust. Never smelled...
Man I was just about ready to pull the trigger in an LPF kit today. Didn’t realize anyone else was making anything for these. I do most of my own fab work but was trying to be lazy. This might be a viable option are
You happy with fitment? I would almost want to try the comp turbos oil-less ones...