Product Summary

Stock Height Suspension Height Adjustment, Adjustable

  • The QA1 Proma Star Strut is a lightweight, inverted strut design ideal for both street and race applications, improving performance and handling for Mustangs.
  • Its inverted cartridge design with a large diameter shaft ensures smoother performance, better handling, and improved traction by reducing unsprung weight.
  • Double-adjustable valving allows for independent tuning of rebound and compression, offering 18-position adjustability for precise handling under any driving conditions.
  • The strut offers easy bolt-in installation, ensuring a hassle-free upgrade process.
  • Made in the USA, it requires QA1 caster camber plates, which are sold separately, with coilover conversion kits also available.
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Key Specs

MFG. Part #HD03
Suspension Height AdjustmentStock Height
Shocks IncludedYes
AdjustableYes
Gas ChargedYes
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Need To Know

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QA1 HD03 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.

Double-Adjustable Valving

Double-adjustable struts are the ultimate in performance suspension. Independent tuning of rebound and compression allows you to fine-tune the handling of your Mustang for any driving condition. Adjustments are made under the hood with an easily accessible 18 position knob at the top of the strut tower. This is the choice for drivers who want the absolute best possible handling and performance from their car.

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.
  • 94-04 Mustang QA1 CC114
  • Coil over conversion kits available as QA1 COK113

QA1 HD03 Specifications

KEY SPECS
MFG. Part #HD03
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 Code806990174123
Sold in QuantityEach
Boot IncludedNo

Questions & Answers

Fitment

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