Wanting some power

[NvrDwn]

I'm new here. I was given a base yaris sedan and its pretty boring. Great gas mileage though. I'm very underwhelmed by the lack of power gain for i/h/e. I'm wondering what the restriction is? Has anyone done pnp to and intake runners? Is that even possible on these cars? I know some cars have attic runners.. I've done a lot of work on cars in the past and was hoping to get 130whp out of this with ihe plus pnp to and intake runners..

Also, does anyone know how much weight can be saved by taking out the spare and the rear seats? And what does the passenger seat weigh? Thanks.