I think it would be more beneficial in an intercooled setup, as the EGR just recycles exhuast into the intake in order to dilute the air/fuel mix and thus keep the burn cooler.

the cooler air from an intercooled setup would keep cylinder ignition temps down and then you'd have the added benefits of a cleaner burn/intake if you blocked the egr off.

although I am just learning all about this myself so I could be mistaken