Yes. I need oem springs but everyone has si springs. I have a sport touringIf by “the same size” you mean the springs will fit into different struts and different control arms then yes, the springs differ in rate (and free height maybe).
Thanks!People put Si Springs in the hatchback
https://www.civicx.com/forum/threads/hatchback-stiffer-springs-stock-height-options.37847/