Will a 4gj2 turbo be a direct upgrade into an npr with a 4gj2 non turbo?

Yes, a 4GJ2 turbo can be a direct upgrade for an NPR with a 4GJ2 non-turbo engine, as both engines share the same base design. However, you will need to ensure proper installation of the turbo components, including the turbo manifold, oil supply and return lines, and potentially an intercooler. Additionally, it’s important to consider the engine management system and fuel delivery to accommodate the increased power and boost levels from the turbo. Proper tuning will also be necessary to optimize performance and reliability.