i just picked up an almost factory 99 civic si after crashing my old hatch. the previous owner only lowered it and put 17in wheels on it. i know finding factory size wheels will be cake. so, i am so close to racing h stock, but i am having trouble finding si springs. my buddy recently got coilovers for his integra and his old springs are pretty much free to me. i also have a spare set of konis that i want to use, so the question is:

are the spring rates for 96 integra close enough to the spring rates of the si for h stock? would i (or anyone for that matter) be able to tell the difference?

i understand that the rates have to be the same, but this is not going to be a solo national car or anything like that so i doubt ~3-5 lbs/in would make a difference. hopefully i will make it to an event at least 3 times a year.

 

The spring rates will most likely be different but it won't even be enough to be noticeable height-wise or performance-wise.

 

thank you sir!