lol @ "turbo down"
The 2006 Corolla is the 1NZ-FE engine right? 1.5L?
After a quick search, this is the only thing I'm finding about boosted ones:
http://uaeboost.net/forums/viewtopic.php?f=16&t=8282To spend that kinda moolah just to get 150hp, totally not worth it...and if TRD decides they're not gonna push it past the 150hp mark, I don't see why you would want to either.
And then Haydn28's shopping list there is a cool $16,000 (at least) and you haven't touched internals yet. It's too much of a gamble IMO.
Now that's just based on my quick search tho eh...do a little more research into the most effective and cost efficient ways to do it (maybe some crazy Aussie has done it already, I dunno lol), but bear in mind that you have "fast", "cheap" and "reliable", but you only get to pick two.
Would be cool to see something like this done properly down here though.