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PSS10 Adjustability Question

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Hello kind folks,

Did a quick search and surprisingly very little turned up on the PSS10. Context: My 03 C4S has the PSS10 system, is lowered, runs on 997 lobster claw 19s with Conti DWS all seasons.

I have been fiddling with the settings -

  • The dials on the front adjust both compression AND rebound, correct?
  • I am assuming preload is not adjustable by the user, and needs to be set when doing the install? With a lowered ride height, I am assuming they took out quite a bit of preload in my case?
  • Are the rears adjustable too? I can get to the fronts when I do a full lock of the steering on either side. But I can't even peek under the rear end to get a good look. Do the rears have the knobs and do they also go from 0-9?
  • I have always left the fronts at zero, but the other day, I turned it up to 4. The front end felt more sharp, but the ride was bone crushingly hard. I know some of it is the pothole ridden winter roads in New England, but it was intolerable, so I went back to 0. What is a good front and back setting by way of good handling without being too rough?

Would love to hear from folks, thanks.


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Don't have an answer for you but I am interested in hearing any responses to your questions. I'm interested in upgraded my stock suspension 99 C2 and all the local shops are recommending this system (to the point that 2 of them won't install anything else). "These are the pinnacle of adjustability" is what I'm being told at more expense over some of the other systems out there obviously. I'm just looking to lower my car a bit from stock and have better handling for the occasional track days I'm going to start doing as well a more fun/security on the local twisties. I have driven the car hard enough now to start noticing the limits of my stock/well worn (86K) suspension.

I like the idea of easy adjustment between comfort settings and performance settings offered by the PSS10 system.

I am interested in your final thoughts as to how comfortable at the softest vs the stiffer setting once you have them dialed in overall. I'm running on 19's as well.

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