Well the first part of this is not accurate. Cold air contains more oxygen and will combust better and that's a fact but it's just not necessary on this particular engine.The idea of cool air intake itself is incorrect as the engine is warmer than outside.
I never settle for anything other than OEM parts (or do it twice). Those oil filled filters will clog all pores within a matter of days if you drive on a dirt roads, then the engine receives less air. Oil can contaminate the MAF sensor too.
Agreed on second part of that statement.
It's a cruiser people, keep it OEM and stop making it less of a land cruiser.