https://www.jlttruecoldair.com/jlt-3...-4runner-3-4l/
Interesting. I've always run oil separators on my previous Mustangs and F150 truck.
However, 4runners in OEM form without a separator have gone half a million miles..
May be better for the TRD blown guys, so they aren't getting engine oil in the intake path and on the supercharger rotors