Yeah!
The Lexus IS200: 1G-FE 2.0L straight six (114KW)
The Lexus IS300: 2JZ-GE 3.0L straight six (157KW)
Toyota Altezza: 3S-GE 2.0L 4cyl. inline (154KW)
If you want performance, try to get the 3S or the 2JZ.... a turbocharged 2JZ would give your IS an ultimative kick in the A.SS.
Also the 3S.... with a turbo conversion it would be too easy to get 400-500HP out of those hell-machines.
I wouldn't try to hit the 300HP area with the stock 1G-FE..... it could blow up.
NG, RR