Coilover suspension refers to a suspension that allows individual adjustment of the ground clearance on each corner of the vehicle. This is done by means of a screw thread on the suspension strut. For this reason, a car with a coilover suspension can also be raised or lowered quickly and with minimal tools required by private individuals.
Coilover kit's come in different forms such as height adjustable only, height and damping adjustable and height, damping, camber and castor depending upon mainly the price point and brand.
The difference between lowering springs and coilovers is one is comfortable in lowering your height and another is good for better handling and stiffness. A daily driver and a planted race car differ in their suspension settings and their intended uses. Before selecting suspension, you must determine the purpose for lowering your car. Which of these two suspension types lowering springs or coilovers should you pick to suit your needs best? Let's talk about the benefits, drawbacks, and applications of lowering springs and coilovers.
Lowering Springs
Many consider lowering springs as an option to lower their vehicle as you can lower your car without sacrificing the supple stock suspension feel and it can be a cheaper option. Additionally, it can make your suspension stiffer, which offers a less expensive alternative to coilovers with virtually the same performance. However, unlike coilovers, springs do not let you adjust the ride height, they are fixed at the lowering amount the smaller springs offer.
Coilovers
Coilovers allow you change your ride height and are available in a variety of setups, from daily use to full track setup, Offering ease of adjustment with a C spanner normally supplied with the kit. You may not limited to a particular stiffness depending on the kit you choose, unlike lowering springs. The idea that coilovers inherently trade-off ride quality for performance and provide a rough ride is a widespread myth. Simply said, this is untrue.