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#721HK43FMM3
QA1 HK43-FMM3 Level 3 Full Vehicle Handling Kit, 90-93 Mustang
- The QA1 Level 3 Handling Kit enhances the handling and performance of Fox Body Mustangs, featuring a lightweight tubular K-member, control arms, boxed trailing arms, sway bars, and adjustable coilovers.
$6,828.95
/kit
Factory Shipped
$7,565.35
Save $736.40
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Product Summary
90-93 Ford Mustang, Polyurethane Bushing Material
- The QA1 Level 3 Handling Kit enhances the handling and performance of Fox Body Mustangs, featuring a lightweight tubular K-member, control arms, boxed trailing arms, sway bars, and adjustable coilovers.
- Weighing only 25 lbs, this K-member is 50% lighter than stock, improving engine bay space, geometry, and durability. It allows for interchangeable engine mounts for flexibility with factory and late-model engines.
- The inverted front struts and rear coilovers feature a large diameter shaft and lightweight aluminum body, paired with high-travel springs optimized for autocross and road racing, offering up to 2" of lower ride height adjustment.
- The rear coilovers are designed for competitive applications, providing exceptional adjustability for fine-tuning suspension performance under various driving conditions.
- Aluminum caster camber plates offer precise adjustments for suspension geometry, while tubular control arms, trailing arms, and sway bars improve stability, reduce body roll, and enhance traction during cornering.
Key Specs
| MFG. Part # | HK43-FMM3 |
| Bushing Material | Polyurethane |
| Hardware Included | Yes |
| Front Coil Springs Included | Yes |
| Rear Coil Springs Included | Yes |
Need To Know
Truck Shipment
Truck shipments must be pre-paid with a credit card, certified check or money order
Need help?
855.313.9176Quick and Easy Returns
Return PolicyQA1 HK43-FMM3 Details
QA1 HK43-FMM3 Details
Product Overview
The QA1 Level 3 Handling Kit is a serious upgrade for people seeking ultimate handling and performance from their Fox Body Mustang. The kit includes a lightweight tubular K-member, control arms, boxed trailing arms, sway bars, and front double adjustable coilovers and rear MOD Series coilovers.
Tubular Front K-member
These are designed to save weight and free up room in your engine bay. Weighing only 25lbs., it's 50% lighter than stock K-members and boasts improved geometry and durability. Interchangeable engine mounts, sold separately, offer flexibility for running factory or late model engines including Coyotes.
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. Paired with lightweight, high-travel springs with hand-selected rates perfect for flat cornering autocross and road race Mustangs.
These kits offer up to 2" lower than stock ride height adjustment to dial in the perfect stance.
MOD Series rear coilovers provide competition cars with an unmatched level of tunability and control.
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.
Tubular Control Arms, Trailing Arms and Rear Sway Bar
Tubular control arms, trailing arms, and sway bars solve flexing and bushing bind, allowing smoother suspension movement, reduced body roll, and better traction in the 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
Engine mounts not included. QA1 offers several mounts for factory engines as well as popular engine swaps which are sold separately.
For Fox Body:
Not compatible with Cobra IRS
Guides & Documents
QA1 HK43-FMM3 Specifications
QA1 HK43-FMM3 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | HK43-FMM3 |
| Brand | QA1 |
| Bushing Material | Polyurethane |
| Hardware Included | Yes |
| Front Coil Springs Included | Yes |
| Rear Coil Springs Included | Yes |
| Rear Leaf Springs Included | No |
| Front Shock Type | Double adjustable coil-over |
| Rear Shock Type | Single adjustable coil-over |
| Front Sway Bar Included | Yes |
| Sway Bar Type | Hollow |
| Front Sway Bar Diameter | 1.25" |
| Rear Sway Bar Included | Yes |
| Rear Sway Bar Type | Solid |
| Rear Sway Bar Diameter | 1" |
| Tie Rod Sleeves Included | No |
| End Link Bushings Included | Yes |
| Rear Leaf Spring Bushings Included | No |
| Sway Bar Bushings Included | Yes |
| Upper Trailing Arms Included | Yes |
| Lower Trailing Arms Included | Yes |
| Trailing Arm Mount Braces Included | No |
| Panhard Bar Included | No |
| Torque Arm Included | No |
| Upper Control Arms Included | No |
| Lower Control Arms Included | Yes |
| Control Arm Style | Tubular |
| Control Arm Material | Steel |
| Front Strut Tower Bar Included | No |
| K-Member Support Brace Included | Yes |
| Rear Strut Tower Bar Included | No |
| Subframe Connectors Included | No |
| Chassis Stiffener Included | No |
| Calipers Included | No |
| Rotors Included | No |
| Brake Pads Included | No |
| Brake Lines Included | No |
| Wheel Studs Included | No |
| Center Link Included | No |
| Spindles Included | No |
| Inner Tie Rod Ends Included | No |
| Outer Tie Rod Ends Included | No |
| GENERAL | |
| GTIN Code | 806990174345 |
| Sold in Quantity | Kit |
| Notes | Kit will retain factory track width. Not compatible with Cobra IRS. Bump steer kit included. |
| Shocks Included | Yes |
Ratings & Reviews
Ratings & Reviews
Questions & Answers
Questions & Answers
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Fitment
Fitment
1990-1993 Ford Mustang