1.3 Ltr Yaris Air Filter mods

[aucorium]

Hi

I have a 1.3 LTR 5 dr yaris and want to ask some of your opinions, i know one can get a hi-flow replacement airfilter from K&N to fit in the factory airbox , but is that enough to get max performance , i mean to get a ram-air tube to the bumper or to an open air duct is a mission and as it is the standard airbox hardly gets any good clean air flow.

so what to do??

A friend of mine ran a air pipe down for his RUNX and said he got better performance feel without the extra air intake, so what to do???

Any ideas??