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QA1 HS01 Proma Star Coilover Strut, 79-93 Mustang, Single Adjust

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#721HS01

QA1 HS01 Proma Star Coilover Strut, 79-93 Mustang, Single Adjust

The QA1 Proma Star Strut is designed for both street and race applications, providing optimal performance and handling for various driving styles.
Its inverted cartridge design features a large diameter shaft that resists side loading, ensuring smoother performance during hard cornering and braking, while the lightweight aluminum body reduces unsprung weight for improved responsiveness.

$499.95

/each

Factory Shipped

$553.86

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Product Summary

Stock Height Suspension Height Adjustment, Adjustable

The QA1 Proma Star Strut is designed for both street and race applications, providing optimal performance and handling for various driving styles.
Its inverted cartridge design features a large diameter shaft that resists side loading, ensuring smoother performance during hard cornering and braking, while the lightweight aluminum body reduces unsprung weight for improved responsiveness.
Equipped with an easily accessible 18-position knob for rebound adjustment, the strut allows drivers to fine-tune suspension firmness for a comfortable ride on the street and increased performance on the track.
The product includes one individual strut, with QA1 caster camber plates required for installation (sold separately).
The strut is not compatible with factory size springs for 2005-2014 Mustangs, highlighting the need for careful fitment considerations.

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Key Specs

MFG. Part #	HS01
Suspension Height Adjustment	Stock Height
Shocks Included	Yes
Adjustable	Yes
Gas Charged	Yes

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QA1 HS01 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.
2005-2014 Mustang Strut is not compatible with factory size springs

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Guides & Documents

Struts Installation Instructions (721HS01)

Warranty (QA1)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

QA1 HS01 Specifications

KEY SPECS
MFG. Part #	HS01
Brand	QA1
Suspension Height Adjustment	Stock Height
Shocks Included	Yes
Adjustable	Yes
Gas Charged	Yes
Number of Valving Selections	18
Upper Shock Mount	Single Stud
Shock Type	Double-adjustable
Lower Shock Mount	Bracket
Shock Body Material	Aluminum
Finish	Painted
Material Type	Aluminum
Color	Black
Coilover Springs Included	No
Crossmember Included	No
Mounting Bracket Included	Yes
Hardware Included	No
Welding Required	No
Adjustable Valving	Yes
Position	Front

GENERAL
GTIN Code	806990174369
Sold in Quantity	Each
Boot Included	No

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Fitment

1979-1993 Ford Mustang