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Qa1

QA1 94-04 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 300lb/in.

SKU: QAPHD03-12300

Coilover Kits

QAP Coil Shocks - Proma Star...

Qa1

QA1 94-04 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 300lb/in.

SKU: QAPHD03-12300

Coilover Kits

QAP Coil Shocks - Proma Star...

A$3,944.18
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Dial in your ideal ride quality with the independently adjustable compression and rebound valving of QA1 Proma Star double adjustable coilover systems. They offer the perfect balance of street-ability and performance and are an ideal choice if you plan to use your car on the road and occasionally take it to the track.

With QA1 Proma Star double adjustable coilover systems you will improve overall handling, increase suspension tunability, and gain the ability to adjust ride height quickly and easily for a perfect stance and corner balance your car, maximizing performance. They are easy to install with basic hand tools in the factory mounting locations and does not require the use of a toe link relocation kit.

Coilovers are available with multiple spring rate options to help you find the perfect option for your intended use. The medium springs are great for cars that will mostly be used on the road. The firm option is geared toward track-oriented cars, further reducing body roll under hard cornering, and providing a more planted feel.

Product Overview

Product Overview QA1 Proma Star coilover strut kits are a versatile choice for any Mustang owner. Ideal for both street and race applications, thanks to custom-tailored spring rate and strut valving packages which achieve the ultimate level of ride and performance. The lightweight inverted strut design, adjustable ride height and valving bring out the best possible performance, handling, and stance. Inverted Strut Design Ride Height Adjustability Tuned Spring Rates Double-Adjustable Coil-Overs Lightweight Caster Camber Plates Easy, Bolt-In Installation Made in the USA Fitment Notes Kit contains one pair of struts, springs, caster camber plates and related hardware. 79-93 Fox Body applications work on wide and narrow spindles.


Features and Benefits

  • Inverted design resists side loading
  • Single or double adjustable valving options
  • Lightweight
  • Easy, bolt-in installaion
  • Made in the USA

Product Details

Brand:QA1
Description:QA1 94-04 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 300lb/in.
Manufacturer Part Number:HD03-12300
Part Number:qapHD03-12300
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Title:QA1 Suspension Strut Assembly HD03-12300
UPC:806990174147

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb SKU Kit Title
qapHK43-FMM4 QA1 94-04 Ford Mustang Level 3 Handling Kit w/ Shocks (1x qap5221, 1x qap5255, 1x qap52886, 1x qapBAX104, 1x qapMUK02, 1x qapT121W, 1x qapHD03-12300, 1x qapRCK52411, 1x qap52541)

Part Type

Suspension Strut Assembly

Data: v4.2 - Upd: 2026-10-15 04:55:57

Features

  • Easy, bolt-in installaion
  • Inverted design resists side loading
  • Lightweight
  • Made in the USA
  • Single or double adjustable valving options

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
HD03-12300
Product Attributes - Part Type
Coilover Kits
Product Attributes - Product Line
QA1 Proma Star Double Adjustable Coilover Systems
Product Attributes - UPC
806990174147
Product Attributes - Coilover Kit Position
Front
Product Attributes - Adjustable Valving
Yes
Product Attributes - Number of Valving Selections
324
Product Attributes - Shocks Included
Yes
Product Attributes - Internal Design
Twin-tube
Product Attributes - Coilover Springs Included
Yes
Product Attributes - Spring Rate (lbs./in.)
300 lbs./in.
Product Attributes - Suspension Height Adjustment
0.0-2.0 in. lowered
Product Attributes - Gas Charged
No
Product Attributes - Extended Length (in.)
19.92
Product Attributes - Collapsed Length (in.)
15.05
Product Attributes - Upper Mount
Stud
Product Attributes - Lower Mount
Bracket
Product Attributes - Shock Body Material
Aluminum
Product Attributes - Shock Body Finish
Black
Product Attributes - Spring Finish
Black
Product Attributes - Crossmember Included
No
Product Attributes - Adjustable Mounting Bracket Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - Welding Required
No
Product Attributes - Quantity
Sold as a pair.

Reference Information

Brand Name/s Qa1
StreetFX SKU qapHD03-12300
SFX Item ID 4095867
Supplier Item Code 4095867
Manufacturer SKU HD03-12300
Manufacturer UPC 806990174147
Alternative References qa1, QA1-HD03-12300, 300lb/in.

Brochures

Compatibility

Application Data
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1994
    Ending Year2004
    Engine TypeV6
    Engine Size3.8L/232
    Engine FamilyFord V6
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year2004
    Ending Year2004
    Engine TypeV6
    Engine Size3.9L/238
    Engine FamilyFord V6
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelGT
    Beginning Year1994
    Ending Year1995
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelGT
    Beginning Year1996
    Ending Year2004
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelGT BULLITT
    Beginning Year2001
    Ending Year2001
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelGTS
    Beginning Year1995
    Ending Year1995
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelMACH 1
    Beginning Year2003
    Ending Year2004
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA 10TH ANNIVERSARY
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year1994
    Ending Year1995
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year2001
    Ending Year2001
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year2003
    Ending Year2004
    Engine TypeV8
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA R
    Beginning Year1995
    Ending Year1995
    Engine TypeV8
    Engine Size5.8L/351
    Engine FamilyFord small block Windsor
    DrivetrainRWD
  • UniversalNo
    MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA R
    Beginning Year2000
    Ending Year2000
    Engine TypeV8
    Engine Size5.4L/330
    Engine FamilyFord modular V8
    DrivetrainRWD
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year1994
    Ending Year2004
    Engine TypeV6
    CID232
    Liter3.8
    Engine Size3.8L/232
    Engine FamilyFord V6
    DrivetrainRWD
    Engine VIN Code4
  • MakeFORD
    ModelMUSTANG
    SubmodelBASE
    Beginning Year2004
    Ending Year2004
    Engine TypeV6
    CID238
    Liter3.9
    Engine Size3.9L/238
    Engine FamilyFord V6
    DrivetrainRWD
    Engine VIN Code6
  • MakeFORD
    ModelMUSTANG
    SubmodelGT
    Beginning Year1994
    Ending Year1995
    Engine TypeV8
    CID302
    Liter5.0
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
    Engine VIN CodeT
  • MakeFORD
    ModelMUSTANG
    SubmodelGT
    Beginning Year1996
    Ending Year2004
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeX
  • MakeFORD
    ModelMUSTANG
    SubmodelGT BULLITT
    Beginning Year2001
    Ending Year2001
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeX
  • MakeFORD
    ModelMUSTANG
    SubmodelGTS
    Beginning Year1995
    Ending Year1995
    Engine TypeV8
    CID302
    Liter5.0
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
    Engine VIN CodeT
  • MakeFORD
    ModelMUSTANG
    SubmodelMACH 1
    Beginning Year2003
    Ending Year2004
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeR
  • MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA 10TH ANNIVERSARY
    Beginning Year2003
    Ending Year2003
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeY
  • MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year1994
    Ending Year1995
    Engine TypeV8
    CID302
    Liter5.0
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    DrivetrainRWD
    Engine VIN CodeD
  • MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year1996
    Ending Year2001
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeV
  • MakeFORD
    ModelMUSTANG
    SubmodelSVT COBRA
    Beginning Year2003
    Ending Year2004
    Engine TypeV8
    CID281
    Liter4.6
    Engine Size4.6L/281
    Engine FamilyFord modular V8
    DrivetrainRWD
    Engine VIN CodeY

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