The OE high-rate spring in your Focus ST or RS is what causes such a vague and disconnected clutch pedal feel. The spring causes a non-linear and confusing pedal feel, making it difficult to modulate the clutch on your Focus ST or RS. Many Focus owners have found that taking out the stock OE spring will give you somewhat similar results, but most owners fail to realize the prolonged effects of simply taking out your factory OE spring and not replacing it with another spring. By eliminating the clutch spring, your clutch pedal will never fully return to stock position and over time your slave cylinder may begin leaking due to constant pressure on its seals. But donâ€™t worryâ€¦ Steeda has your back. Our Steeda Focus ST/RS Clutch Spring Kit completely replaces the factory spring and is honed in on just the right amount of spring rate to get you the perfect clutch pedal feel you look for in your Focus. This assist spring is manufactured from piano wire that naturally has high tensile strength and high elastic qualities. Our piano wire spring ensures a consistent spring rate and minimal sag even after repeated use. The Steeda Focus Clutch Spring Kit allows you to feel exactly when clutch engages and disengages, making shifting a breeze.