Very true, you can probally get the same or more usable gains from having somone skilled in porting work on the standard stuff from inlet to exhaust.

Still wouldn't be cheap, but the whole XF EEC4 TB swap is a lot of work for not much gain unless you have a VL turbo.

I've had 2 of these TB's and the work involved isn't worth the gains, and yes you can find them at wreckers if you're determined to use one.