Product Summary

Stock Height Suspension Height Adjustment, Adjustable

  • The QA1 Proma Star Strut is designed for both street and race applications, enhancing performance and handling for Mustangs of various driving styles.
  • Its inverted cartridge design features a large diameter shaft that resists side loading, ensuring consistent performance during hard cornering and braking while reducing unsprung weight.
  • The lightweight aluminum body contributes to better handling and traction, making it an excellent choice for performance-focused drivers.
  • Equipped with an easily accessible 18-position knob for rebound adjustment, these struts allow drivers to tailor the suspension for comfort on the street or firmness for track use.
  • The kit includes one individual strut and requires QA1 caster camber plates (sold separately).
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Key Specs

MFG. Part #HS03
Suspension Height AdjustmentStock Height
Shocks IncludedYes
AdjustableYes
Gas ChargedYes
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Need To Know

Quick and Easy Returns

Return Policy

QA1 HS03 Details

The QA1 Proma Star Strut is a perfect choice for your Mustang. It's ideal for both street and race applications, thanks to its lightweight inverted strut design. This allows you the best possible performance and handling out of your car, regardless of your driving style.

Inverted Strut Design

A major advantage of the Proma Star strut is its inverted cartridge design. Unlike conventional designs, its large diameter shaft resists side loading, ensuring smoother and more consistent performance during hard cornering and braking. The lightweight threaded aluminum body offers reduced unsprung weight improving suspension responsiveness, leading to better handling and traction.

Single-Adjustable Valving

Single-adjustable struts are a good option for street-driven cars that also see occasional track use. Rebound adjustment is made under the hood with an easily accessible 18 position knob at the top of the strut tower. A good choice for drivers wanting a comfortable ride on the street with the ability to firm up the suspension to hit the curves.

EASY, BOLT-IN INSTALLATION

Our commitment to thoughtful product design is evident in every fully bolt-in kit we produce, which guarantees a hassle-free installation process.

MADE IN THE USA

QA1 Proma Star struts are proudly made in Lakeville, Minnesota.

FITMENT NOTES

  • Includes one individual strut only.
  • QA1 Caster Camber plates are required and sold separately.
  • 79-93 Fox Body applications work on wide and narrow spindles.

Guides & Documents

QA1 HS03 Specifications

KEY SPECS
MFG. Part #HS03
BrandQA1
Suspension Height AdjustmentStock Height
Shocks IncludedYes
AdjustableYes
Gas ChargedYes
Number of Valving Selections18
Upper Shock MountSingle Stud
Shock TypeDouble-adjustable
Lower Shock MountBracket
Shock Body MaterialAluminum
FinishPainted
Material TypeAluminum
ColorBlack
Coilover Springs IncludedNo
Crossmember IncludedNo
Mounting Bracket IncludedYes
Hardware IncludedNo
Welding RequiredNo
Adjustable ValvingYes
PositionFront
GENERAL
GTIN Code806990174390
Sold in QuantityEach
Boot IncludedNo

Questions & Answers

Fitment

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