Ive been told an evo 3 radiator can be fitted into an RVR by simply modifying the lower brackets as its slightly smaller, however how do the fans work? The radiator im looking at has a custom shroud and fans, and mine have a resistor box of some kind from factory. Do i need to wire this in or simply bypass it etc? Will simply determine if i get the one with the shroud and modify it to fit the box or get one without shroud/fans and use my stock fans etc.