MPG vs Performance (Yaris)

[GasSavers_BEEF]

Been a while since I posted and so just wanted to get some people talking.

I bought a yaris a little over a year ago. I have been trying to decide what direction to go with the car and have been doing some small performancy things to it.

My original idea was that it was going to be my daily driver after my Cavalier dies but I have actually made other arrangements there.

I have done the following things to it:

-stiffer springs (~1" drop)
-rear sway bar
-Short Ram Intake (SRI)
-heat wrapped Tri-Y header (stainless steel)
-shift extender (3" extension)
-short shifter
-OEM armrest
-OEM rear bumper protector
-tachometer
-ultragauge
-OEM cruise added

I just ordered a mandrel bent 2" exhaust from the resonator back. that should be here in about a week or so.

I am seriously considering a supercharger that is relatively popular in the yaris community.

I have heard that the S/C actually doesn't hurt mileage when it is off. The S/C kit actually has a clutch pulley so you can have it on or off. That was kinda neat.

The stock hp of these cars with a manual is 90whp (106hp as per manufacturer). I have heard that with the supercharger you can achieve 120-135whp depending on what other stuff you have on the car.

I am just curious of any thoughts that anyone has about all this. I know this isn't a typical discussion for this board but hey, I'm trying to liven up the place.

-beef