Eibach's Sportline kit lowers the S550 Mustang EcoBoost and V6 about 1.5" front and 1.3" rear for a purposeful drop and a lower center of gravity. Progressive-rate coils sharpen turn-in and cut body roll while keeping the ride livable on the street. Supplied as a set of four springs designed to run with the factory dampers.
| Type | Sportline performance lowering springs (set of 4) |
| Spring Design | Progressive-rate coil |
| Lowering | Front 1.5" / Rear 1.3" |
| Material | High-strength alloy spring steel |
| Warranty | Eibach 5-Year (defects in material and workmanship) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | Ford | Mustang | Bullitt |
| 2015-2023 | Ford | Mustang | EcoBoost |
| 2015-2023 | Ford | Mustang | EcoBoost Premium |
| 2015-2021 | Ford | Mustang | GT |
| 2015 | Ford | Mustang | GT 50 Years Limited Edition |
| 2015-2021 | Ford | Mustang | GT Premium |
| 2021 | Ford | Mustang | Mach 1 |
| 2015-2020 | Ford | Mustang | Shelby GT350 |
| 2015-2020 | Ford | Mustang | Shelby GT350R |
| 2020-2021 | Ford | Mustang | Shelby GT500 |
| 2015-2017 | Ford | Mustang | V6 |
