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Product Summary

79-86 Ford Mustang, Polyurethane Bushing Material

  • The QA1 Level 1 Handling Kit enhances the ride and handling of Fox Body Mustangs, featuring single adjustable front coil-over struts, rear coil-overs, and a front sway bar for a more aggressive stance.
  • The kit includes front struts with an inverted cartridge design and lightweight aluminum body, providing improved suspension performance and high-travel springs optimized for handling without compromising comfort.
  • This kit allows for up to 2" of lowering from stock ride height, enabling customization of your Mustang's stance.
  • The rear coil-overs are suitable for street use but can be tuned for track performance, making them versatile for different driving conditions.
  • The 1¼” front sway bar enhances steering response and reduces body roll, while aluminum caster camber plates offer lightweight precision adjustments to fine-tune suspension geometry for optimal performance.
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Key Specs

MFG. Part #HK41-FMM1
Bushing MaterialPolyurethane
Hardware IncludedYes
Front Coil Springs IncludedYes
Rear Coil Springs IncludedYes
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Need To Know

Quick and Easy Returns

Return Policy

QA1 HK41-FMM1 Details

Product Overview
The QA1 Level 1 Handling Kit is an ideal choice for people seeking a more aggressive stance, better ride and handling from their Fox Body Mustang. The kit includes single adjustable front coil-over struts, rear coil-overs, and front sway bar.

Inverted Front Struts and Rear Coil-Overs 
Front struts feature an inverted cartridge design, large diameter shaft, and lightweight aluminum body for improved suspension performance. The lightweight, high-travel springs with proven spring rates are optimized for improved handling, without sacrificing comfort.

These kits offer up to 2" lower than stock ride height adjustment to dial in the perfect stance for your Mustang.

Single-adjustable rear coilovers are a good option for the street with the ability to tune for the track.

Lightweight Caster Camber Plates
Aluminum caster camber plates improve Mustang handling and performance. Lighter and sleeker than steel, they offer precision adjustment to fine-tune suspension geometry for optimal performance.

Front Sway Bar
QA1's 1 ¼” front sway bar sharpens steering response, reduces body roll, and keeps your car planted in corners.

Easy, Bolt-In Installation
Our commitment to thoughtful product design is evident in every fully bolt-in kit we produce, to deliver the highest level of performance, while ensuring trouble-free compatibility.

Made in the USA
QA1 struts, coilover shocks, and tubular suspension is proudly made in Lakeville, Minnesota.

Fitment Notes
Not compatible with Cobra IRS

Guides & Documents

QA1 HK41-FMM1 Specifications

KEY SPECS
MFG. Part #HK41-FMM1
BrandQA1
Bushing MaterialPolyurethane
Hardware IncludedYes
Front Coil Springs IncludedYes
Rear Coil Springs IncludedYes
Rear Leaf Springs IncludedNo
Front Shock TypeSingle adjustable coil-over
Rear Shock TypeSingle adjustable coil-over
Front Sway Bar IncludedYes
Sway Bar TypeHollow
Front Sway Bar Diameter1.25"
Rear Sway Bar IncludedNo
Tie Rod Sleeves IncludedNo
End Link Bushings IncludedYes
Rear Leaf Spring Bushings IncludedNo
Sway Bar Bushings IncludedYes
Upper Trailing Arms IncludedNo
Lower Trailing Arms IncludedNo
Trailing Arm Mount Braces IncludedNo
Panhard Bar IncludedNo
Torque Arm IncludedNo
Upper Control Arms IncludedNo
Lower Control Arms IncludedNo
Front Strut Tower Bar IncludedNo
K-Member Support Brace IncludedNo
Rear Strut Tower Bar IncludedNo
Subframe Connectors IncludedNo
Chassis Stiffener IncludedNo
Calipers IncludedNo
Rotors IncludedNo
Brake Pads IncludedNo
Brake Lines IncludedNo
Wheel Studs IncludedNo
Center Link IncludedNo
Spindles IncludedNo
Inner Tie Rod Ends IncludedNo
Outer Tie Rod Ends IncludedNo
GENERAL
GTIN Code806990174246
Sold in QuantityKit
NotesNot compatible with Cobra IRS.
Shocks IncludedYes

Fitment

    Customer Impersonation Script