Some of the modifications that need to be made include:
- Swapping the engine mounts
- Modifying the transmission to fit the RB26DETT engine
- Installing a new fuel pump
- Installing a new intercooler
- Installing a new exhaust system
- Modifying the ECU to run the RB26DETT engine
Due to the complexity of the swap, it is generally recommended to have it done by a professional mechanic.