I'm doing research on springs I want to put on my car and it was important for me to find out about spring rates since I will be tracking the car. I figured some forum members might find it usefull so i'll post the rates here in one place.
I am not certain what the stock OEM rates are but according to Tanabe, their NF series springs only add up to 5% of spring rate to the OEM so you may want to use their aftermarke spring rates as a reference point to OEM.
RSR Down (PN: T195D)
RSR Superdown (PN: T197S2)
Tanabe NF210 (PN: TNF177)
Tein HTech (PN: SKQ74-BUB00)
Tein STech (PN: SKQ74-AUB00)
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