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Qa1

QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bushing Mount - 15in/23.125in - Alum

SKU: QAPDS903

Coilover Shocks and Struts

QAP Coil Shocks - Proma Star...

Qa1

QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bushing Mount - 15in/23.125in - Alum

SKU: QAPDS903

Coilover Shocks and Struts

QAP Coil Shocks - Proma Star...

A$532.43
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

QA1 Proma Star externally adjustable coilover shocks and struts provide just the right combination of consistency, reaction, and durability for drag racing. They have special valving, which is designed to compensate for high shaft speed, while allowing for low shaft speed control. When combined with the 18 externally adjustable valve settings, they ensure an improved grip on the track from end to end. Other features include a bright-anodized aluminum body, PTFE-lined bearings or polyurethane bushings, a 5/8 in. centerless-ground chrome piston rod, and aerospace-caliber sealing materials.

Product Overview

With QA1's Proma Star single adjustable coil-over shock, you can easily adjust your compression and rebound valving and get the hard-core performance you need. One knob allows you to choose from 18 valving options that adjust both compression and rebound valving simultaneously, allowing total suspension control in one easy-to-reach location. Simultaneous Compression and Rebound Adjustment, Coil-Over, Lightweight Aluminum, Ride Height Adjustable, Spring Mounting Hardware Included, 100% Dyno Tested and Serialized, Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers, American Made, Precision Machined Aluminum Piston with PTFE Piston Band, 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod, Three Step Sealing System.


Features and Benefits

  • Easily adjust your ride height for the perfect stance.
  • Achieve the perfect balance of ride quality and performance with simultaneous tuning of rebound and compression.
  • Multiple bushing or bearing configurations available to fit your needs.
  • Limited Lifetime Warranty for peace of mind.
  • Proudly made in the USA.

Product Details

Brand:QA1
Description:QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bushing Mount - 15in/23.125in - Alum
Manufacturer Part Number:DS903
Part Number:qapDS903
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Title:QA1 Shock Absorber DS903
UPC:806990063885

Part Type

Coilover

Data: v4.2 - Upd: 2026-10-14 17:01:58

Features

  • Achieve the perfect balance of ride quality and performance with simultaneous tuning of rebound and compression.
  • Easily adjust your ride height for the perfect stance.
  • Limited Lifetime Warranty for peace of mind.
  • Multiple bushing or bearing configurations available to fit your needs.
  • Proudly made in the USA.

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
DS903
Product Attributes - Part Type
Coilover Shocks and Struts
Product Attributes - Product Line
QA1 Proma Star Coilover Shocks and Struts
Product Attributes - UPC
806990063885
Product Attributes - Coilover Shock Type
Single-adjustable
Product Attributes - Shock Body Material
Aluminum
Product Attributes - Shock Body Finish
Silver
Product Attributes - Adjustable Valving
Yes
Product Attributes - Number of Valving Selections
18
Product Attributes - Extended Length (in.)
23.63
Product Attributes - Collapsed Length (in.)
15.00
Product Attributes - Upper Mount
Stud
Product Attributes - Lower Mount
Eyelet
Product Attributes - Internal Design
Twin-tube
Product Attributes - Gas Charged
No
Product Attributes - Body Diameter (in.)
2.000
Product Attributes - Bushing Material
Polyurethane
Product Attributes - Bushing Color
Black
Product Attributes - Coilover Springs Included
No
Product Attributes - Recommended Spring Diameter (in.)
2.50 in.
Product Attributes - Recommended Minimum Spring Length (in.)
14.00 in.
Product Attributes - Adjustable Mounting Bracket Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Qa1
StreetFX SKU qapDS903
SFX Item ID 4093404
Supplier Item Code 4093404
Manufacturer SKU DS903
Manufacturer UPC 806990063885
Alternative References qa1, QA1-DS903, 15in/23.125in

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Compatibility

Application Data
  • UniversalYes
    UsageStreet/Strip

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