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My K4M is comming to it's end after 200.000 miles, been thinking about repairing it or swap to the F4R non RS version.
Since all F4R have VVT and my K4M doesn't how would it affect to run the F4R on stock k4m ecu and disconnecting the vvt solenoid ?
Only recently discovered there is different versions of the renault OZ F1's.
Some came in 6j and others 7J, also think 7J OZ F1's are made of magnesium.
Does anyone know the story behind this, did they change from some year on ?