what does the resonator do, does it sound better, and if so how do i take it offf?

it quiets the exhaust, or intake, depending on which resonator you're talking about.

The resonator on the tC is a Helmholtz type resonator. This type of resonator is not simply for noise reduction but for tuning the pressure waves of the intake air to yield better efficiencies.

According to a Toyota brochure, the resonator box on the tC is tuned to increase torque.

Here is a good place to read up further on Helmholtz resonators:

http://www.users.bigpond.com/pgscott/resonator/resonator.html

The resonator on the tC is a Helmholtz type resonator. This type of resonator is not simply for noise reduction but for tuning the pressure waves of the intake air to yield better efficiencies.

According to a Toyota brochure, the resonator box on the tC is tuned to increase torque.

Here is a good place to read up further on Helmholtz resonators:

http://www.users.bigpond.com/pgscott/resonator/resonator.html

Nice responce I am impressed! :shock: Cool link too, good info there. :D

So after reading this article, and the article linked to it, does that mean we shouldn't get aftermarket intakes if we're planning on upping the hp in our cars? Why don't manufacturers like AEM or INJEN put resonators on their intakes if they're so effective in increasing hp?

it all depends upon the car , the intake , and the filter , thpse are just results with a cutom intake on a soarer.