Steeda S550/S650 Mustang MT82 Clutch Spring Assist 35 lb/in All (2015-2024)

Your 2015+ Mustang comes with a 185 lb/in clutch assist spring installed from the factory. This high-rate spring is what causes such a vague and disconnected clutch pedal feel. The clutch pedal travels in a circular arc, with the spring assist in the middle of that clutch pedal travel. The middle of that motion compresses the spring initially and then allows it to extend after the first 30 degrees of travel. The combination of a high-rate assist spring and motion of the pedal during engagement causes a non-linear and sometimes confusing pedal feel. Having a non-linear pedal feel makes it hard to modulate the clutch on your Mustang GT, EcoBoost or V6.

Many new Mustang owners have found that taking out the stock OE spring will give you somewhat similar results, but realistically the clutch becomes far too heavy especially if your Mustang is daily driven. Most owners fail to realize the prolonged effects of simply taking out your factory OE spring and not replacing it with another spring. By negating your factory clutch assist spring you will notice chatter/NVH from your clutch pedal. Your clutch pedal will never fully return to stock position without any assist spring, and over time your slave cylinder may begin leaking due to constant pressure on its seals from the clutch pedal not returning to the stock position. Avoid these problems in the future by installing the Steeda S550 Mustang Clutch Assist Spring 35 lb/in into your GT, EcoBoost or V6.

The Steeda S550 Mustang Clutch Assist Spring 35 lb/in completely replaces the factory 185 lb/in assist spring. Steeda's engineers have honed in on just the right amount of spring rate to get you the perfect clutch pedal feel you look for in a Mustang. This assist spring is manufactured from piano wire that naturally has high tensile strength and high elastic qualities. The Steeda piano wire spring ensures a consistent spring rate and minimal sag even after repeated use. With the addition of this clutch assist spring, you will notice a much more linear feeling clutch - the reason being is that they take out much of the influence involved in your clutch pedal motion caused by the assist spring, allowing you to feel exactly what is happening with your clutch engagement.

Purchase your Steeda S550 Mustang Clutch Assist Spring 35 lb/in for your 2015+ Mustang GT, EcoBoost or V6 at Parker Performance today!

Note: Will not fit 2019-2020 GT350. Clutch spring may be incompatible Ford Performance M-9452-M8 no-lift shift strategy.

Looking to purchase the Steeda S550 Clutch Spring Assist and Spring Perch kit? See Steeda PN# 555-7027