QA1 Level 3 Full Vehicle Handling Kit (HK43-FMM3) - 1990-1993 Ford Mustang
Push your Fox Body to its limits with the QA1 Level 3 Full Vehicle Handling Kit, engineered for 1990-1993 Mustangs seeking maximum cornering performance and control. Built for serious enthusiasts and racers, this complete suspension system delivers exceptional responsiveness, reduced body roll, and precise handling for street, autocross, and road course applications.
This premium setup features a lightweight tubular K-member that cuts front-end weight while improving suspension geometry and engine bay access. Double adjustable front coilovers combined with QA1 MOD Series rear coilovers provide unmatched tuning capability, allowing you to dial in compression and rebound for optimal balance and grip. Paired with tubular control arms, boxed trailing arms, and sway bars, this system minimizes chassis flex and delivers a stable, predictable feel in every corner.
Features
- Complete high-performance handling suspension system
- Lightweight tubular K-member reduces weight and improves geometry
- Double adjustable front coilovers for precise tuning
- QA1 MOD Series rear coilovers for ultimate rear suspension control
- Inverted front strut design improves strength and reduces deflection
- Lightweight aluminum components reduce unsprung weight
- Optimized spring rates for improved cornering and road course performance
- Tubular control arms and boxed trailing arms reduce flex and improve stability
- Sway bars reduce body roll and enhance cornering grip
- Up to 2 inches of ride height adjustment for dialing in stance
- Enhances steering response and overall vehicle control
Additional Notes
- Designed for 1990-1993 Fox Body Mustang applications
- Engine mounts are required and sold separately
- Compatible with factory engines and popular swaps including Coyote
- Retains factory wide track width for 1990-1993 models
- Not compatible with Cobra IRS setups
- Direct bolt-in installation with no major modifications required
- Manufactured in the USA
Fitment
- 1990 Ford Mustang
- 1991 Ford Mustang
- 1992 Ford Mustang
- 1993 Ford Mustang
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

