You should research what size rally tires are currently available.
I would think that larger brakes wouldn't be necessary for rally cross or ice racing - in fact lighter would be better.
Stage rallying on the other hand could benefit from larger brakes although with a rear drive car you likely won't be doing much left foot braking (common with FWD and AWD vehicles) which is rough on the binders.
Check out www.specialstage.com
JimB
I would think that larger brakes wouldn't be necessary for rally cross or ice racing - in fact lighter would be better.
Stage rallying on the other hand could benefit from larger brakes although with a rear drive car you likely won't be doing much left foot braking (common with FWD and AWD vehicles) which is rough on the binders.
Check out www.specialstage.com
JimB