QA1 Proma Star coil-over strut kits deliver a complete, bolt-in front suspension upgrade for the Ford Mustang. Each kit uses the lightweight inverted strut, whose large-diameter shaft resists side loading for consistent cornering and braking, matched spring rates, and single-adjustable valving adjusts rebound for street comfort with track-ready firmness to tune ride and handling for street or race use. Ride height is adjustable to set the stance, lightweight caster camber plates are included, and everything bolts in. The kit is made in the USA.
Specifications:
- Series: QA1 Proma Star coil-over strut kit
- Valving: Single-adjustable rebound
- Design: Inverted strut, large-diameter shaft resists side loading
- Body: Lightweight threaded aluminum
- Included: One pair of struts, matched springs, lightweight caster camber plates, and related hardware
- Spring rate: Matched, application-tuned
- Ride height: Adjustable
- Fitment: 1979-1993 Fox Body applications work on wide and narrow spindles
- Installation: Bolt-in
- Origin: Made in the USA
- Part number: HS03-12200
Vehicle Applications:
- 1994 Ford Mustang
- 1995 Ford Mustang
- 1996 Ford Mustang
- 1997 Ford Mustang
- 1998 Ford Mustang
- 1999 Ford Mustang
- 2000 Ford Mustang
- 2001 Ford Mustang
- 2002 Ford Mustang
- 2003 Ford Mustang
- 2004 Ford Mustang
FAQ
What is included in this QA1 strut kit?
The kit contains one pair of struts, matched springs, lightweight caster camber plates, and related hardware for a complete bolt-in front suspension.
What vehicles does the HS03-12200 kit fit?
The HS03-12200 kit is built for the Ford Mustang. See the Vehicle Applications list for the covered years and models.
What valving does the HS03-12200 kit use?
The kit uses single-adjustable struts that adjust rebound, giving street comfort with the ability to firm up for the track.
Are caster camber plates included?
Yes. Lightweight QA1 caster camber plates are included in the kit along with the struts, springs, and hardware.

