Eibach ERS 2.50 in. ID Linear Tender Spring (0225.250.XXXX) Spring Rate:300 lbs/in The FX300 clutch kit features

The FX300 clutch kit features a robust construction with a focus on durability and consistent performance

Manufactured from high-grade 54SiCr6 spring steel

This coilover kit combines advanced materials and thoughtful design to deliver a reliable upgrade for your BMW M3

Easy to install with compatible BMW control arms

Fully polished mufflers and tips add a refined aesthetic to your vehicle's rear end

Eibach ERS 2.50 in. ID Linear Tender Spring (0225.250.XXXX) Spring Rate:300 lbs/in The FX300 clutch kit featuresLinear Tender Spring by Eibach The ERS systems relies on a Main and Tender spring concept that provides a softer initial rate when both springs are compressed together, then delivers the desired firmer ending rate once the tender spring closes completely. The Main spring has a linear rate characteristic and determines the final rate of the system. The Tender springs are available in a variety of linear rate as well as progressive rate characteristics