Tein Coilover Racing Spring I.D. 58mm Spring Rate 18kg/mm (Pair)

If you're looking to dial in your suspension for track days or serious performance driving, a stiffer spring rate can make a big difference. These Tein coilover racing springs are designed for use with coilovers that accept a 58mm inner diameter spring. With a stout 18kg/mm spring rate, they offer a much firmer ride than stock, which helps reduce body roll and keeps the tires planted during aggressive cornering.

Tein is known for making well-built suspension components, and these springs are no exception. The 18kg/mm rate is a popular choice for many performance builds where a noticeable improvement in handling is desired without going to an extreme setup. They are sold as a pair, so you'll get two springs to match your front or rear setup. Remember that installing stiffer springs will change the ride quality, making it firmer, so it's a trade-off for improved cornering performance.