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If that's what EBD does than won't the car be able to compensate automatically for the front BBK???
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Upgrading only the front will still adversely affect brake performance even with EBD, because EBD application is contingent on the G force limits detected by the ABS system. The ABS computer will keep finding that the front brakes are exerting too much force, and will modulate the braking with the EBD to compensate. That continual modulation will increase your stopping distance. EBD doesn't change the programmed limits of ABS--it applies it.
If you get just the front brakes upgraded without the rear, you're guaranteeing longer stopping distances. The increased brake torque will inevitably put an excessive front brake bias that forces the ABS (and consequentially the EBD) to overcompensate. As I said before, the limiting factor in braking is the tires, not the rotors/brakes. If you want larger rotors to serve as a better heat sink, the pressure applied in the brake calipers need to be adjusted to compensate for the greater brake torque from the larger rotor diameter. Hence BBKs need the appropriate calipers to match.
For the money, and from tests, Stoptech seems to be the best bang for the buck. Just hold out and wait for them to release a kit. Si is a pretty major car, I'm sure they're not ignoring it.