I have also been looking for turbos for my 03 OZ. I did research and the T-28 turbos seem the easiest to mount without mods to the engine. You can find it at
www.roadracemotorsports.com. It seems expensive here I have also found turbo kits at
www.turbodiscounters.com for a less, but as far as quality go Im not sure about either of these? I am still doing my research.