QA1 Pro Coil-Over System - Single Adj. - 9in x 550lbs/in - Aluminum — Fits 2003-2011 Ford Crown Victoria

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SKU: QAPMS431-09550
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 Pro Coil-Over System for 2003-2011 Ford Crown Victoria

Upgrade your Crown Victoria's suspension with the QA1 Pro Coil-Over System, engineered for 2003-2011 models. This system, including Base, Fleet, LWB, LX, LX Sport, Police Interceptor, S, and Special Edition variants, offers precise control over ride height and damping for a tailored driving experience.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for easy ride height adjustments, enabling you to achieve your desired stance or optimize weight balance for superior handling.
  • Single Adjustable Valving: Customize the damping force to suit your driving preferences, from comfortable cruising to spirited performance driving.
  • Optimized Spring Rate: This kit features a 550 lbs/in spring rate, offering a firmer feel and improved body control compared to stock, ideal for performance-oriented drivers.
  • Lightweight Aluminum Construction: Constructed from high-quality aluminum, these coilovers reduce unsprung weight and resist corrosion for lasting performance.
  • Precise Fitment: Designed as a direct replacement for 2003-2011 Ford Crown Victoria models, ensuring a straightforward installation process.

Transform your Crown Victoria's handling capabilities with the QA1 Pro Coil-Over System. Experience enhanced stability, reduced body roll, and a more responsive feel on the road. This system is the perfect choice for those looking to significantly upgrade their vehicle's performance and aesthetics. Get the best from your Crown Victoria.

Find this QA1 Pro Coil-Over System at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description
Part Numbers
Sizing & Fit

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 Pro Coil-Over System for 2003-2011 Ford Crown Victoria

Upgrade your Crown Victoria's suspension with the QA1 Pro Coil-Over System, engineered for 2003-2011 models. This system, including Base, Fleet, LWB, LX, LX Sport, Police Interceptor, S, and Special Edition variants, offers precise control over ride height and damping for a tailored driving experience.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for easy ride height adjustments, enabling you to achieve your desired stance or optimize weight balance for superior handling.
  • Single Adjustable Valving: Customize the damping force to suit your driving preferences, from comfortable cruising to spirited performance driving.
  • Optimized Spring Rate: This kit features a 550 lbs/in spring rate, offering a firmer feel and improved body control compared to stock, ideal for performance-oriented drivers.
  • Lightweight Aluminum Construction: Constructed from high-quality aluminum, these coilovers reduce unsprung weight and resist corrosion for lasting performance.
  • Precise Fitment: Designed as a direct replacement for 2003-2011 Ford Crown Victoria models, ensuring a straightforward installation process.

Transform your Crown Victoria's handling capabilities with the QA1 Pro Coil-Over System. Experience enhanced stability, reduced body roll, and a more responsive feel on the road. This system is the perfect choice for those looking to significantly upgrade their vehicle's performance and aesthetics. Get the best from your Crown Victoria.

Find this QA1 Pro Coil-Over System at GGCRACING.

Vehicle Fitment

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

Product Details

Product Description

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 Pro Coil-Over System for 2003-2011 Ford Crown Victoria

Upgrade your Crown Victoria's suspension with the QA1 Pro Coil-Over System, engineered for 2003-2011 models. This system, including Base, Fleet, LWB, LX, LX Sport, Police Interceptor, S, and Special Edition variants, offers precise control over ride height and damping for a tailored driving experience.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for easy ride height adjustments, enabling you to achieve your desired stance or optimize weight balance for superior handling.
  • Single Adjustable Valving: Customize the damping force to suit your driving preferences, from comfortable cruising to spirited performance driving.
  • Optimized Spring Rate: This kit features a 550 lbs/in spring rate, offering a firmer feel and improved body control compared to stock, ideal for performance-oriented drivers.
  • Lightweight Aluminum Construction: Constructed from high-quality aluminum, these coilovers reduce unsprung weight and resist corrosion for lasting performance.
  • Precise Fitment: Designed as a direct replacement for 2003-2011 Ford Crown Victoria models, ensuring a straightforward installation process.

Transform your Crown Victoria's handling capabilities with the QA1 Pro Coil-Over System. Experience enhanced stability, reduced body roll, and a more responsive feel on the road. This system is the perfect choice for those looking to significantly upgrade their vehicle's performance and aesthetics. Get the best from your Crown Victoria.

Find this QA1 Pro Coil-Over System at GGCRACING.

Vehicle Fitment

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

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