QA1

QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 450lbs/in - Aluminum - MS431-09450

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SKU:
QAPMS431-09450
UPC:
806990159908
MPN:
MS431-09450
Availability:
Regularly stocked product
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MSRP: $981.49
$885.95
— You save $95.54
Current Stock: 1

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Description

Are these coil-overs direct bolt-in for my 2003-2011 Ford Crown Victoria?
Yes, QA1 Pro Coil coil-overs are specifically designed for a direct bolt-in installation on your 2003-2011 Ford Crown Victoria.

What kind of adjustment options do these coil-overs offer?
These coil-overs provide fully adjustable ride height and valving control for a completely personalized and superior driving experience.

QA1 Pro Coil coil-overs transform your 2003-2011 Ford Crown Victoria, offering a fully adjustable, superior driving experience. Featuring a 9 inch x 450 pounds per inch spring rate and fully threaded aluminum bodies, these coil-overs provide unparalleled control. Experience a perfectly balanced stance and aggressive look with this premium suspension upgrade.

What Owners Say

Owners and enthusiasts consistently praise QA1 Pro Coil coilovers for transforming ride quality, with drivers reporting they "feel like a modern front end" and soak up bumps remarkably well. Street users highlight confidence-inspiring handling, with some comfortably slaloming at 40-50mph after installation. The complete suspension transformation and bump absorption stand out as key benefits. Some buyers note QA1 sits at a higher price point compared to budget alternatives, and reviews can be mixed depending on application. When ordering issues arise, both QA1 and retailers have demonstrated strong customer service. These coilovers have earned respect among classic and performance enthusiasts seeking serious suspension upgrades.

Key Features

  • 9in x 450lbs/in
  • Aluminum
  • fully adjustable ride height and valving control
  • fully threaded body
  • Lightweight Billet Aluminum Coil-Over Shocks
  • 100% Dyno Tested and Serialized

Why Choose the QAP Coil-Overs - Pro Coil

Achieves a perfectly balanced stance and aggressive look for your Crown Victoria.

Provides unparalleled control and responsiveness for a thrilling, connected driving feel.

Transforms your ride with a custom setup tailored precisely to your driving style.

Delivers consistent, race-proven performance with every single shock tested and verified.

Who Is This For?

Street Performance — 9/10
Adjustable ride height and valving for personalized handling.

Track / Autocross — 9/10
Fully adjustable for optimal track performance tuning.

Racing Competition — 8/10
Premium performance with adjustable settings for racing.

Daily Driving Comfort — 7/10
Adjustable valving can improve ride quality.

Easy DIY Install — 8/10
Bolt-in install type simplifies installation process.

Visual / Aesthetic Upgrade — 7/10
Lightweight billet aluminum construction enhances appearance.

Frequently Asked Questions

Are the QA1 Pro Coil Coilovers compatible with my 2003-2011 Ford Crown Victoria?

Direct bolt-in fitment is confirmed for your 2003-2011 Ford Crown Victoria with the QA1 Pro Coil Coilovers. These coilovers are engineered specifically for this chassis. You can be confident in achieving a perfect fit for enhanced performance.

How difficult is it to install the QA1 Pro Coil Coilovers?

Installation of the QA1 Pro Coil Coilovers is designed as a straightforward bolt-in process. This easy DIY install capability is rated at a score of 8. This simplifies the upgrade for enhanced handling and customizable ride.

Can I daily drive with QA1 Pro Coil Coilovers?

Daily driving is a viable use case for the QA1 Pro Coil Coilovers, scoring a 7 for Daily Driving Comfort. The adjustable valving control allows for tuning to improve ride quality. Experience enhanced handling and a personalized setup for your daily commute.

What level of performance can I expect from QA1 Pro Coil Coilovers for track use?

QA1 Pro Coil Coilovers deliver race-proven performance, achieving a score of 9 for Track/Autocross usage. The fully adjustable ride height and valving control allow for optimal track performance tuning. Experience consistent, verified performance engineered for demanding driving.

Important Notices

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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Additional Information

Clearance Item:
N
MPN:
MS431-09450
Proposition 65:
Y
Case Lot Quantity:
1
Category:
Suspension>Coilovers
Install Type:
Bolt-In
Product Level:
Premium Performance
Street Performance:
9/10
Track / Autocross:
9/10
Racing Competition:
8/10
Daily Driving Comfort:
7/10
Easy DIY Install:
8/10
Visual / Aesthetic Upgrade:
7/10
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