Suspension
2015-2026 Roush Mustang Single Adjustable Coilover Suspension Kit
Roush part # 421839
$1,399.00
Roush retail price · part only
Installed at our shop
est. $2,149.00
Part $1,399.00 + about 5 hrs labor at $150/hr ($750.00).
Estimate only — shop supplies and sales tax not included. We confirm the final installed price for your exact vehicle before any work.
Fits: 2015–2026 Mustang
MustangInstalled at our East Bridgewater shop, or shipped anywhere in the US. Prefer to talk? 508-715-3554
- Genuine ROUSH Performance part, from an authorized Gold Dealer
- Installed by Ford specialists at our East Bridgewater shop
- Roush retail price. Installed price estimated up front, confirmed before work
Prices and availability subject to change. Prices updated October 2, 2026.
Details & specs
Product highlights for the 2015-2026 Roush Mustang Single Adjustable Coilover Suspension Kit:
- Dramatic improvement in handling
- Approximate 1.5" drop in front ride height and 1.0" rear drop (ride heights as delivered)
- Additional ride height adjustment with included tools
- Provides additional stiffness and stability through turns
- Rated for producing over 1.0g lateral skid pad acceleration
- Maintains high level of ride quality on the street while increasing performance on the track
- Race-inspired and proven on the track
- NOTE: Fits Non-MagneRide equipped vehicles ONLY
Elevate your Mustang's handling and aesthetic appeal with Roush Coilovers. Our Single Adjustable Suspension Kit comprises performance struts and shocks, finely tuned for an optimal blend of control and comfort, along with height-adjustable performance springs. This kit offers a 1.5-inch drop in the front and a 1.0-inch drop in the rear, allowing for further adjustments to customize your ride's stance or fine-tune corner weights. Engineered to handle over 1.0g lateral acceleration, it's ideal for track days, autocross, or spirited drives. Roush Suspension Kits are meticulously designed and tested to ensure harmonious integration with the entire vehicle, taking your Mustang's performance to new heights.
This comprehensive suspension upgrade includes:
- Zinc-plated steel coilovers with red powder-coated springs (Front)
- Roush-tuned rear shocks
- Adjustable spring mounts with red powder-coated springs (Rear)
- Front and Rear height adjustment spanners
