Steeda Dual Rate Ultimate Handling Lowering | Mustang
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Authorized Dealer • Expert Installation • Thousand Oaks, CA
Discount Code: FFPERFORMANCE
805-267-9762
FFP · AUTHORIZED DEALER The leader in Ford performance · Over 35 years · MAP pricing SHOP ALL STEEDA →
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Part #555-8246

2015-2026 Ford Mustang – Steeda Dual Rate Ultimate Handling Lowering Springs

Fits These Vehicles 2015-2026 Ford Mustang Dark Horse/Mach 1/Bullitt/GT/EcoBoost
Price Original price was: $459.95.Current price is: $449.95.
  • Engineered and manufactured in Valdosta, Georgia
  • CNC-machined billet construction where applicable
  • Tested on Steeda's SCCA Majors race program
  • Steeda authorized dealer — exact MAP pricing

Limited Lifetime Warranty

Backed by Steeda — FFP is an authorized Steeda dealer and warranty claims are honored direct.

— Function Factory Performance

Authorized Steeda Autosports dealer. MAP pricing — the same price as steeda.com. Expert install available at our Thousand Oaks, CA shop. Questions on fitment or setup? Chat with Senna or call our specialists.

Overview

The full breakdown.

Install
Tech Recommended
Time
4 Hours
Drop
0.75″ F / 0.75″ R
Origin
Made in USA
Warranty
Limited Lifetime

Overview

Are you looking for competition-proven handling performance for your 2015+ Mustang while still maintaining street drivability? Steeda’s Dual Rate Ultimate Handling Springs are your answer! Designed for ALL street and road racing applications, Steeda’s Competition springs have the highest rates on the market but still maintain a comfortable and enjoyable ride when put on the street.

Competition-proven in both NASA and SCCA events, these springs greatly reduce nosedive and keep body roll to a minimum for the ultimate in performance handling. By lowering your S550/S650 Mustang .750″ all around, these springs provide an optimized center of gravity and an aggressive stance. Pair these with our Pro-Action shocks and struts as well as other Steeda suspension products to make your S550/S650 Mustang a winner!

Professional race car driver, Billy Johnson borrowed a Q500 for some laps at Palm Beach International Raceway and this is what he has to say about them.

Product Gallery

Key Benefits

LIFETIME warranty
Lowers the S550 0.750″ at all 4 corners
Lowers the S650 1.3″ in front and 0.75″ in rear
Designed for competition racing but maintains outstanding street-able ride
Highest spring rate for dramatic improvement in handling and reduction of nosedive
Steeda collaborates with the best motorsport spring engineers in the industry to provide you the best products possible
Race-proven in NASA and SCCA events

Specifications

Installation Difficulty
Tech Recommended
Estimated Install Time
(approx.) 4 Hours
Tools Required
Basic Shop Tools
Front Drop
0.75
Rear Drop
0.75
Drop Range
0.25-0.9
Origin
Made in the USA

Video

📄Download Install Instructions (PDF) — Steeda’s official guide

Fitment

2015-2026 Ford Mustang Dark Horse/Mach 1/Bullitt/GT/EcoBoost.

Note: Steeda Springs are manufactured under these rigorous manufacturing certifications: QS-9000 & ISO 9001.

Why Steeda
The leader in Ford performance.

Steeda has been engineering and manufacturing Ford performance parts in-house in Valdosta, Georgia for over 35 years — proven on their own SCCA Majors race team and trusted by enthusiasts who live and breathe Ford. CNC-machined billet construction, proprietary CAD-driven suspension geometry, and a relentless focus on the platforms they specialize in.

QS-9000 & ISO 9001 manufacturing · Limited lifetime warranty on Steeda-manufactured parts · Made in the USA

First-hand note

FFP fits Steeda parts every week in Thousand Oaks.

— Why we stock Steeda

OE-style engineering, in-house manufacturing, race-proven on Steeda's own SCCA program.

Steeda has been engineering Mustang — and now Explorer, Focus, F-150, and Maverick — parts in Valdosta, Georgia since 1988. CNC-machined billet, proprietary CAD-driven suspension geometry, and a factory SCCA Majors road-racing team that runs their own parts on the track every weekend. When you bolt a Steeda part onto your car, it's the same part Steeda's own race cars run.

We carry Steeda because the fitment is right the first time, the warranty is real (lifetime on Steeda-manufactured parts), and the install instructions don't leave you guessing. Drop the car at our Thousand Oaks shop and our techs handle the fit-up — or order with confidence and run it yourself.

Authority: Charles Siritho · McLaren Artura Trophy owner · Spotter for Branden Sorensen FD Pro (E46 LS+Whipple, 6th at Long Beach R1 2026) · 10+ yrs Mustang & Corvette specialist

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— FFP is an Authorized Steeda Dealer

Shop the full Steeda catalog at FFP.

The leader in Ford performance — suspension, intakes, exhaust, brakes, wheels, and more — for Mustang, Bronco, Bronco Sport, Explorer, F-150, and Maverick. Enthusiast-driven, race-tested. MAP pricing always. Expert installation in Thousand Oaks, CA.

BROWSE ALL STEEDA →
Price Original price was: $459.95.Current price is: $449.95.
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OVER 35 YEARS IN FORD PERFORMANCE. RACING EVEN LONGER.
— Steeda Autosports · sold & installed by FFP
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