You might check out this thread from ClubLexus. Some 1UZ/3UZ guys (including myself) manufactured our own intake tubes. Performance? Maybe, but a fairly cost-effective replacement. Mine was only $36.
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Cool. Do the throttle body and air filter housing specs stay the same between the 1UZ/3UZ's and the 2UZ?
Recently changed my Air intake hose, no way to improve performance with actual hose. However the K&N air filter does allow for a lot more air through.
You do not need a custom box just the filter made for 100 series.
Other parts you can change: PCV valve/grommet/PCV hose completely. I felt really impoved idle revs. This is a complete job
After this put 2x lots of Fuel injector cleaner through both tanks on a long trip will get rid of that old 'dead spot' on the accelerator pedal.
If your fuel filter is old, I suggest doing that before you run the injector cleaner through it.
You do not need a custom box just the filter made for 100 series.
Other parts you can change: PCV valve/grommet/PCV hose completely. I felt really impoved idle revs. This is a complete job
After this put 2x lots of Fuel injector cleaner through both tanks on a long trip will get rid of that old 'dead spot' on the accelerator pedal.
If your fuel filter is old, I suggest doing that before you run the injector cleaner through it.
Does this K&N increase space in the engine bay towards the firewall?