H&R Sport Springs were tested and very much loved on the Unity Blue Si for over a year, without any codes/faults! They are also compatible with all Civic trims 2016 - 2021, except for the Civic Type R. This kit offers a perfect 1.25" drop at the Front, and 1" drop at the Rear. Bump Stops will need to be trimmed.
The Progressive Spring Rate offers factory levels of comfort, which is the unique attribute. We would certainly recommend these to anyone looking for a great drop height on a street-driven 10th Gen Civic. The Springs are a bit soft for track use, but one can certainly experience some handling gains on the street with a lower center of gravity. The SPC Performance Rear Camber Kit is recommended for proper alignment once the vehicle is lowered: