I want to make some upgrades to my XU10J4R engine to get better performance with some parts from XU10J4RS, and here are my thoughts:
Things to keep:
1- ECU and wiring.
2- Exhaust manifold.
Things to change:
1- Camshafts swap only to (XU10J4RS) or full engine head.
2- Intake manifold + injection nozzles to (XU10J4RS).
Will I get a better performance? Will I face troubles?
Do I need to install XU10J4RS full engine head instead of mine or only camshafts are enough?