QA1 Proma Star Series Coil-Over Shock Absorber - Double Adj. - Bearing Mount - 11.125in/15in - Alum

SKU: QAPDD403
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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 Proma Star Series Double Adjustable Coil-Over Shock Absorber

Enhance your vehicle's performance and aesthetics with the QA1 Proma Star Series Coil-Over Shock Absorber. Specifically designed for custom chassis and suspension builds, these shocks provide advanced adjustability and superior ride quality. The double-adjustable valving system allows for precise tuning of both compression and rebound, enabling you to tailor your suspension setup for optimal performance on the street or track.

Features & Benefits:

  • Valving: Double adjustable for independent control over compression and rebound damping.
  • Mounting Type: Features a bearing mount for smooth, low-friction operation and enhanced durability.
  • Construction: Lightweight aluminum body ensures excellent heat dissipation and longevity.
  • Dimensions: Extended length of 15 inches and compressed length of 11.125 inches, offering a 3.875-inch stroke.
  • Custom Fitment: Ideal for custom vehicle builds and suspension modifications where standard shocks are not suitable.
  • Adjustable Stance: Comes with hardware for easy ride height adjustment, allowing you to achieve the perfect stance and cornering balance.

To complete your coil-over system, simply select a 2.5-inch diameter spring with the appropriate length and spring rate. These QA1 shocks are engineered to deliver a significant upgrade in handling, comfort, and adjustability. Transform your vehicle's suspension with cutting-edge technology. Explore the full selection of performance parts at GGCRACING.

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 Proma Star Series Double Adjustable Coil-Over Shock Absorber

Enhance your vehicle's performance and aesthetics with the QA1 Proma Star Series Coil-Over Shock Absorber. Specifically designed for custom chassis and suspension builds, these shocks provide advanced adjustability and superior ride quality. The double-adjustable valving system allows for precise tuning of both compression and rebound, enabling you to tailor your suspension setup for optimal performance on the street or track.

Features & Benefits:

  • Valving: Double adjustable for independent control over compression and rebound damping.
  • Mounting Type: Features a bearing mount for smooth, low-friction operation and enhanced durability.
  • Construction: Lightweight aluminum body ensures excellent heat dissipation and longevity.
  • Dimensions: Extended length of 15 inches and compressed length of 11.125 inches, offering a 3.875-inch stroke.
  • Custom Fitment: Ideal for custom vehicle builds and suspension modifications where standard shocks are not suitable.
  • Adjustable Stance: Comes with hardware for easy ride height adjustment, allowing you to achieve the perfect stance and cornering balance.

To complete your coil-over system, simply select a 2.5-inch diameter spring with the appropriate length and spring rate. These QA1 shocks are engineered to deliver a significant upgrade in handling, comfort, and adjustability. Transform your vehicle's suspension with cutting-edge technology. Explore the full selection of performance parts at GGCRACING.

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 Proma Star Series Double Adjustable Coil-Over Shock Absorber

Enhance your vehicle's performance and aesthetics with the QA1 Proma Star Series Coil-Over Shock Absorber. Specifically designed for custom chassis and suspension builds, these shocks provide advanced adjustability and superior ride quality. The double-adjustable valving system allows for precise tuning of both compression and rebound, enabling you to tailor your suspension setup for optimal performance on the street or track.

Features & Benefits:

  • Valving: Double adjustable for independent control over compression and rebound damping.
  • Mounting Type: Features a bearing mount for smooth, low-friction operation and enhanced durability.
  • Construction: Lightweight aluminum body ensures excellent heat dissipation and longevity.
  • Dimensions: Extended length of 15 inches and compressed length of 11.125 inches, offering a 3.875-inch stroke.
  • Custom Fitment: Ideal for custom vehicle builds and suspension modifications where standard shocks are not suitable.
  • Adjustable Stance: Comes with hardware for easy ride height adjustment, allowing you to achieve the perfect stance and cornering balance.

To complete your coil-over system, simply select a 2.5-inch diameter spring with the appropriate length and spring rate. These QA1 shocks are engineered to deliver a significant upgrade in handling, comfort, and adjustability. Transform your vehicle's suspension with cutting-edge technology. Explore the full selection of performance parts at GGCRACING.

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