Racer20 did the research on all of this and found that the CS uses the ZCP dampeners, the Base front springs and roll bar and keeps the ZCP rear bar and springs. So for the CS dampeners to work correctly on a Base car, you'd need ZCP dampeners, rear ZCP springs and sway bar. ZCP cars get most of the CS feeling because their dampeners can run the CS calibrations correctly, but you're still missing out on part of the package without the Base front bar and springs and the smaller 19 inch front wheel.
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Originally Posted by Racer20
Many types of rough roads actually require high damping to reduce the amount of wheel travel and prevent crash-through. Having higher damping can give road impacts a more muted thud sound rather than a louder bang sound, even though the people impact is technically firmer.
The driver may experience a bit more acceleration of jerk, but the ride may still be perceived as more plush because of the improved damping of wheel impacts.
CS edc cal has this characteristic. It has higher damping quality, meaning the damping is applied at the right time and in the right amount more often than the other tunes.
The reason you notice more roll is that the front to rear balance of the springs and bars is different between the CS and ZCP. The ZCP has a stiffer front bar. The CS EDC compensates for this by increasing roll damping at the front. But since the CS and ZCP have the same rear bar, the CS EDC doesn't provide the same increase to rear roll damping.
So now your roll stiffness and damping is a bit out of balance front to rear. Since humans really only perceive things relative to other things, you're probably noticing the rear rolling more than the front, even if the whole car is actually rolling less than before.
To me, the CS is a better damper calibration, but you'll sacrifice a bit of handling and roll balance and steering feel and response unless you have the full CS suspension package. Whether the overall improvement in damping quality is worth it or not is up to you.
The good news is that ZCP's already have most of the expensive/difficult parts needed to swap to a full CS suspension. A front bar and set of springs is all you'd need. It's much more expensive to update a base car to The CS spec.
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