Integra Type R motor swapped into yaris?

[Sabretooth]

If you cram a 1zz engine in a Yaris, you might be able to find enough room left over to boost it, a 2zz there wont be anything left than just the mods that you can do to the engine directly (intake, exhaust, header, pulleys, cams, ecu, etc.) That wont add to the clutter in the engine bay. You will not have lots of space to be adding turbo manifolds, turbos, then piping. I am pretty certain you will need to relocate some pre existing items in the engine bay to make room for new stuff, I could be wrong.

As for the K20 thing, you already have to fab up custom mounts to fit a 2zz in a Yaris, let alone a K20 series...