In all of my time researching, the saturn l200 from 2001-2003 was on the gm2900 platform which shared with opel vectras and saabs and stuff the engine is a "eco tuned" cookie cutter engine so anything will require at least a little creativity. I found tourq the magazine took a 06 (i think) from an ion amd made a custom turbo setup and the only thing that blew was the intake manifold when they got to 250, I was just kinda spewing that lol but in other words 00-03 have the same engine as Pontiac sunfires, chevy cavalier, and so on, take that lightly as every part you throw in needs to be tuned in aswell for it to actually be used but the logic I've been using is if it fits and works properly why fix it!!!

 

Thank you for providing closure to this 15-year-old post. I'm sure the OP, if not dead, appreciates it.

And another one closed....