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Interesting thread...So I have a 04 gs300 and I'm going to put some Tein Flex Z coilovers on it. I didn't know when I ordered them that the spring rate was 12k-fr 10k-r. I'm not the smartest guy in the world but based on simple math that's pretty stiff for daily use. I would've preferred something 8k-fr 6k-r or 10k-fr 8k-r. With all that said I've also learned that DAMPENING means everything! So I went to a local shop and believe it or not someone had the same model GS300 with the same Tein Flex Z's and the ride was awesome!!! He literally altered his setup a few times within a 3 hour period to show me how dampening, ride height, human weight, wheel travel etc works. All in the name of being a good person, and of course my business lol.
But yes, damping is key. Quality of the dampers is the majority of what you are paying for when you get better quality coilovers. That's why I always recommend saving up instead of rushing to buy something like CX Racing or Godspeed.
In the time since this thread was started, I've switched to 14k/12k Swift springs on Fortune Auto dampers, a reasonably middle-ground quality setup. I'd still recommend softer springs, like the 10/8 that BC come with or the 12/10 that Tein Flex come with, for a daily driver.
Last edited by firelizard; Apr 29, 2022 at 08:30 PM.
I just got some bc coilovers in 16/12 and had the same concerns of them being too stiff. However after the install they ride as comfortable as stock without the bounce.
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