Yeah 2JZ-GE in the IS300. They would be totaly cool if you could you could get them in the 6 speed manual veriety, but you can't. They're only automatics, and according to a review I read, it sucks the power right outta 'em.
They come in Manual in teh states tho
Just for interst, here ar some quick ones from teh states.
this one supposebly has 500rwhp
614rwhp
note, the first one is a conversion from the TT Supra, the otehr 2 are built IS300 2JZGE