^^^ i do realize that it will take more work to turbo the 2.4, but in all reality, all that would REALLY be need to be done to it is drop the compression ratio, wich is jsut a matter of using different pistons. yes, the VVT can cause issues if its a stock 2.4 and you add a turbo. If it came fro mthe factory, it would just be a matter of tuning the VVT to accomodate the FI. with those changes to the existing 2.4 (which in reality is not that much to be changed at a factory level) they could very easily turbocharge the 2.4 possibly as high as 15psi if the heat can be kept down (and judging from the oil system, it should do a fairly decent job of keeping the cylinder temps down.) Yes, it would require some modification to the existing 2.4, but 2.4 turbo> 2.0 turbo in my opinion.