Supposedly its supose to add around 8hp...its around $70 dollars...worth it?

http://cgi.ebay.com/ebaymotors/BLACK-TOYOTA-SCION-tC-THROTTLE-BODY-SPACER_W0QQitemZ300092940340QQcategoryZ38634QQcmdZViewItem

i had one on my 2003 GMC Envoy 4wd with a K&N 77 Series Intake and a flowmaster, i noticed a gas mileage increase, not really power...just quicker accelaration since it was also drive by wire like the tC....maybe on an automatic it would be worth it, but manual i dont think it will add power, unless you bore out your throttle body, i think it just adds more air to the throttle body when the butterfly valve is closed and when u use WOT it gives you better response since there is actually more space for air to fit in there.....im no expert but it makes sense to me

It was tried before with no measureable effect. Search.

Someone in the forum had it and dynoed and actually it lost HP so no HP gain.

... ^^

I found this: http://www.airaid.com/510-608_scion.asp

Now, does anyone on here actually have a spacer and can show a graph displaying the increase? If anyone knows of someone, please have them search this thread or PM me....thanks.

I have a dyno that will show u the dramatic decrease. :D I bought it and actually did a dynop testing for Scion Life. Doesn't work. Dyno Proven. :P

Cool.......................I just want real information..............good or bad...........whichever works :)