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

QA1
QAPMS431-09450
806990159908
Coilovers
Out of stock
$ 981.49 $ 885.95

SKU: MS431-09450 | UPC: 806990159908

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

QA1 MS431-09450 is a front Pro Coil single adjustable stock mount shock kit designed for 2003-2011 Ford Crown Victoria models. It includes 9-inch springs rated at 450 lbs/in with flat ends for direct bolt-in replacement. Adjust ride height via the fully threaded body and fine-tune valving to match your driving needs for improved stance and weight balance.

Key Features

  • Lightweight Billet Aluminum Construction: Cuts unsprung weight to enhance acceleration and cornering response on the street or track
  • Ride Height Adjustable: Threaded body allows precise drop or stance tuning without affecting spring preload
  • Single Adjustable Valving: 24-position damping control lets you dial in firmness for comfort or performance
  • Bolt-In Installation: Uses factory stock mounts for straightforward setup with no fabrication required
  • 100% Dyno Tested and Serialized: Each unit verified for consistent quality and performance straight from QA1

Product Notes

  • Pair with rear coilovers for balanced suspension setup on Crown Victoria
  • Rebuildable at QA1 authorized service centers for long-term durability
  • Ships fully assembled ready for immediate installation

Installation Notes

  • Professional installation recommended.
  • Bolt directly to OEM upper and lower stock mounts
  • Verify spring perch orientation during assembly for proper alignment

This Part Fits

Year Make Model Submodel
2003-2005 Ford Crown Victoria S
2005 Ford Crown Victoria Special Edition
2003-2008 Ford Crown Victoria Base
2010-2011 Ford Crown Victoria Base
2006-2009 Ford Crown Victoria Fleet
2003-2009 Ford Crown Victoria LWB
2003-2011 Ford Crown Victoria LX
2004-2006 Ford Crown Victoria LX Sport

Why Choose QA1?

  • Over 30 years leading in performance shocks and suspension for racing and street
  • All products manufactured in USA with 83,000 sq ft facility in Lakeville, MN
  • Focus on dyno-tested components including rod ends, driveshafts, and coilovers

Frequently Asked Questions

  • Q: Which 2003-2011 Ford Crown Victoria models does this fit?
    A: Fits Base, S, Special Edition, Fleet, LWB, LX, and LX Sport submodels as listed in the fitment table
  • Q: What material is used for the coil-over body?
    A: Billet aluminum body provides strength and reduces weight compared to steel
  • Q: What warranty covers this QA1 kit?
    A: Backed by QA1 limited lifetime warranty on manufacturing defects when installed and maintained properly

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-packed box measuring 23in x 13in x 10in
  • Weight: 28 lbs

Request For Information

Have questions about QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 450lbs/in - Aluminum? Fill out the form below and we'll get back to you by the next business day.
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