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QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bearing Mount - 9.5in/12.75in - Alum

QA1
QAPDS303
806990059673
Shocks and Struts
6 Units In Stock - Ships Next Business Day
$ 260.29 $ 234.95
$ 234.95

SKU: DS303 | UPC: 806990059673

QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bearing Mount - 9.5in/12.75in - Aluminum

QA1 Proma Star DS303 coil-over shocks deliver precise handling for custom chassis and suspension builds where direct-fit parts do not exist. This single adjustable aluminum shock with bearing mount top and eyelet bottom offers 9.5 inch compressed length 12.75 inch extended length and 3.25 inch stroke for versatile applications. Gain adjustable ride quality and performance on street cars drag strips or road courses with easy setup using a 2.5 inch spring.

Key Features

  • Single Adjustable Valving: One knob controls compression and rebound for simple tuning of ride firmness ideal for street driven vehicles seeking balanced comfort and control
  • Ride Height Adjustability: Included hardware kit enables fast changes for perfect stance pair with any 2.5 inch ID spring of suitable rate and length
  • Bearing Mount Design: Top bearing mount reduces deflection and handles misalignment while bottom eyelet provides secure attachment
  • Aluminum Body Construction: Lightweight 2.25 inch diameter body resists corrosion and lowers unsprung weight for quicker response
  • Dyno Tested Quality: Every shock undergoes dyno testing in the USA ensuring reliable valving and backed by Limited Lifetime Warranty

Product Notes

  • Verify shock travel matches suspension geometry to prevent overextension or bottoming out
  • Spanner wrenches and thrust bearings available separately for smoother preload adjustments
  • Stock spring pockets require checking for desired height alongside full shock travel

Installation Notes

  • Professional installation recommended.
  • Requires 2.5 inch inside diameter coil spring sold separately
  • Bearing mount top eyelet bottom includes poly bushing sleeves for 1/2 inch and 5/8 inch bolts other mounts sold separately

This Part Fits

Year Make Model Submodel
Universal Custom Chassis Suspension Street Rod Drag Road Course

Why Choose QA1?

  • Manufactured in the USA with rigorous dyno testing for dependable operation
  • Proven valving options suit daily driving or competitive track demands
  • Rebuildable design supports long-term use across multiple motorsports

Frequently Asked Questions

  • Q: Does the DS303 fit specific vehicles?
    A: Designed for universal custom chassis and suspension builds verify 3.25 inch stroke and mount spacing suit your application
  • Q: What body material is used?
    A: Precision aluminum body provides strength and weight savings over steel alternatives
  • Q: How do I get the warranty?
    A: Register at QA1.net/warranty prior to installation for Limited Lifetime coverage

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Durable box 14in x 4in x 4in
  • Weight: 4.85 lbs

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