Product Details
BMR Suspension Drag Lowering Springs for the 2015-2023 Ford Mustang GT, V6, and EcoBoost (S550) use a deliberately soft front spring rate to maximize weight transfer onto the rear tires at launch, paired with a firmer rear rate that plants the contact patches and quickens 60-foot times. Built for drag-focused S550s that live at the strip.
All BMR Suspension springs are cold-wound on CNC coiling machines from chrome silicon high-tensile spring wire, compressed solid twice for permanent set, stress-relieved at 750°F, shot-peened, and computer-tested one at a time. That level of process control is why BMR backs every spring with a lifetime warranty against sag. Proudly manufactured in the U.S.A.
Features
- Drag-tuned Lowering Springs for 2015-2023 S550 Mustang
- Soft front rate maximizes weight transfer at launch
- Chrome silicon spring wire, cold-wound on CNC coiling machines
- Lifetime warranty against spring sag
- Red powder-coat finish
- Made in the U.S.A.
Installation Instructions
Download the SP086 installation guide (PDF)
Specifications
| Part Number | SP086R |
| Part Name | BMR Suspension Drag Lowering Springs |
| Vehicle | 2015-2023 Ford Mustang GT / V6 / EcoBoost |
| Chassis Code | S550 |
| Engine | 3.7L V6; 2.3L EcoBoost I4; 5.0L Coyote V8 |
| Drivetrain | RWD |
| Spring Type | Linear |
| Spring Rate - Front | 150 lb/in |
| Spring Rate - Rear | 800 lb/in |
| Drop - Front | 1.25" |
| Drop - Rear | 0.25" |
| Notes |
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Vehicle Fitment
- 2015 Ford Mustang (S550)
- 2016 Ford Mustang (S550)
- 2017 Ford Mustang (S550)
- 2018 Ford Mustang (S550)
- 2019 Ford Mustang (S550)
- 2020 Ford Mustang (S550)
- 2021 Ford Mustang (S550)
- 2022 Ford Mustang (S550)
- 2023 Ford Mustang (S550)






