can anyone tell me what's the k&n filter for my FJ71

[roscoFJ73]

the only ones i have seen different were the 2F engines
and
those were crappy design.

these round ones are MUCH better ... InMyNotSoHumbleOpinion

The 2F type you mentioned are US only AFAIK. IMO ,its a car filter,like the one on my old Ford V8 .
Maybe with all the smog crap they were loaded with,there was no room left for the heavy duty type filtration.
They did have ventilation problems around the engine

 

[Clint79]

Were they on the US spec 2f