QA1

QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 450lbs/in - Flat Large - Aluminum - GD507-10450C

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SKU:
QAPGD507-10450C
UPC:
806990136602
MPN:
GD507-10450C
Availability:
Regularly stocked product
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$1,063.60
Current Stock: 2

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Description

What is the recommended installation process for QA1 Coilovers?
Professional installation is strongly recommended for QA1 Coilovers to ensure optimal performance and proper setup for your vehicle's unique dynamics.

How do QA1 Pro Coil Coilovers improve my car's handling?
Achieve unparalleled handling with QA1 Pro Coil Coilovers by fine-tuning damping and ride height for peak performance on any driving surface.

QA1 Pro Coil Coilovers transform your vehicle, offering unparalleled handling and a perfectly tailored stance for enthusiasts seeking top-tier performance. Featuring a fully threaded body and lightweight, high-travel springs, these coilovers ensure superior suspension dynamics and a custom aesthetic. Experience the ultimate in adjustability and responsiveness with these advanced coilovers.

What Owners Say

Owners and enthusiasts consistently praise QA1 Pro Coil coilovers for delivering a transformative ride quality that rivals modern suspensions. Classic Mustang owners report the system soaks up bumps exceptionally well and inspires confidence during spirited driving, with some handling slaloms at 40-50mph comfortably. The dramatic improvement over stock setups is a common theme across builds. Some buyers note QA1 sits at a higher price point compared to budget alternatives, and a few mention mixed experiences with order fulfillment—though the company reportedly stands behind their products when issues arise. Overall, QA1 has earned strong respect in the enthusiast community for engineering coilovers that genuinely modernize classic suspension performance.

Key Features

  • fully adjustable ride height
  • valving control
  • fully threaded body
  • lightweight high travel springs
  • fewer coils and a smaller wire diameter
  • increased travel

Why Choose the QAP Coil-Overs - Pro Coil

Achieve your perfect stance and cornering grip with precise ride height customization.

Delivers superior control and responsiveness by fine-tuning damping for any road.

Transforms your classic into a modern performer with enhanced suspension travel.

Provides a smoother ride and improved handling thanks to optimized spring design.

Who Is This For?

Track / Autocross — 9/10
Adjustable ride height and valving control for tuning.

Street Performance — 8/10
Adjustable ride height and valving control for tailored stance.

Racing Competition — 9/10
Adjustable ride height and valving control for optimization.

Daily Driving Comfort — 7/10
Adjustable ride height and valving control allow tuning.

Visual / Aesthetic Upgrade — 8/10
Fully adjustable ride height allows for stance customization.

Frequently Asked Questions

Which QA1 coilovers are best for daily driving and occasional track use?

QAP Coil-Overs - Pro Coil offer excellent versatility for street performance and daily driving comfort. With a usage score of 8 for Street Performance and 7 for Daily Driving Comfort, these coilovers provide a tailored stance and responsive damping for any road or track condition.

Can I install QA1 Pro Coil coilovers myself?

Professional installation is recommended for the QAP Coil-Overs - Pro Coil to ensure optimal performance and safety. Confirm proper fitment and installation with a qualified technician for a seamless upgrade experience on your classic vehicle.

Are QAP Coil-Overs - Pro Coil compatible with my 1965 Ford Galaxie?

QAP Coil-Overs - Pro Coil are designed to fit your 1965 Ford Galaxie, along with a range of other 1958-1996 Chevrolet and Mercury models. This ensures precise fitment and confident performance upgrades for your specific vehicle application.

What kind of performance can I expect from QA1 Pro Coil coilovers on the track?

Experience peak performance on the track with QAP Coil-Overs - Pro Coil, boasting a usage score of 9 for Track/Autocross and Racing Competition. The adjustable ride height and valving control allow for meticulous tuning, delivering superior grip and responsiveness for competitive driving.

Vehicle Compatibility

YearMakeModelSubmodel
1958–1975ChevroletBel AirBase
1958–1972ChevroletBiscayneBase
1960ChevroletBiscayneFleetmaster
1966–1991ChevroletCapriceBase
1973–1991ChevroletCapriceClassic
1973–1974ChevroletCapriceEstate
1975–1980ChevroletCapriceClassic Sport
1975ChevroletCapriceEstate Wagon
1976–1982ChevroletCapriceClassic Estate
1976–1981ChevroletCapriceClassic Landau
1986–1990ChevroletCapriceClassic Brougham
1987–1990ChevroletCapriceClassic LS Brougham
1991ChevroletCapriceClassic LTZ
1958ChevroletDel RayBase
1971–1985ChevroletImpalaBase
1975–1977ChevroletImpalaCustom
1975–1980ChevroletImpalaSport
1976ChevroletImpalaS
1976ChevroletImpalaCustom Landau
1977–1979ChevroletImpalaLandau
1981–1982ChevroletImpalaEstate
1994–1996ChevroletImpalaSS
1960EdselRangerBase
1960FordGalaxieSpecial
1960–1964FordGalaxieBase
1961FordGalaxieTown Victoria
1961FordGalaxieClub Victoria
1961FordGalaxieStarliner
1961FordGalaxieSunliner
1960–1963MercuryCountry CruiserBase
1963–1964MercuryMarauderBase
1961MercuryMeteor600
1961–1963MercuryMeteorBase
1962–1963MercuryMeteorCustom
1962–1963MercuryMeteorS-33
1960–1964MercuryMontereyBase
1962–1963MercuryMontereyCustom
1962MercuryMontereyCustom S-55
1963MercuryMontereyS-55

Additional Resources

Official QA1 Product Page

Installation Guide (PDF)

Important Notices

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Browse More: Shop All Coilovers — Suspension

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Warranty Information

This Part Fits:

YearMakeModelSubmodel
1958-1975ChevroletBel AirBase
1958-1972ChevroletBiscayneBase
1960ChevroletBiscayneFleetmaster
1966-1972,1986-1991ChevroletCapriceBase
1973-1991ChevroletCapriceClassic
1986-1990ChevroletCapriceClassic Brougham
1976-1978,1981-1982ChevroletCapriceClassic Estate
1976-1981ChevroletCapriceClassic Landau
1987-1990ChevroletCapriceClassic LS Brougham
1991ChevroletCapriceClassic LTZ
1975-1976,1979-1980ChevroletCapriceClassic Sport
1973-1974ChevroletCapriceEstate
1975ChevroletCapriceEstate Wagon
1958ChevroletDel RayBase
1971-1985ChevroletImpalaBase
1975-1977ChevroletImpalaCustom
1976ChevroletImpalaCustom Landau
1981-1982ChevroletImpalaEstate
1977-1979ChevroletImpalaLandau
1976ChevroletImpalaS
1975-1976,1979-1980ChevroletImpalaSport
1994-1996ChevroletImpalaSS
1960EdselRangerBase
1960-1964FordGalaxieBase
1961FordGalaxieClub Victoria
1960FordGalaxieSpecial
1961FordGalaxieStarliner
1961FordGalaxieSunliner
1961FordGalaxieTown Victoria
1960,1963MercuryCountry CruiserBase
1963-1964MercuryMarauderBase
1961MercuryMeteor600
1961-1963MercuryMeteorBase
1962-1963MercuryMeteorCustom
1962-1963MercuryMeteorS-33
1960-1964MercuryMontereyBase
1962-1963MercuryMontereyCustom
1962MercuryMontereyCustom S-55
1963MercuryMontereyS-55
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Additional Information

Case Lot Quantity:
1
Category:
Suspension>Coilovers
Clearance Item:
N
MPN:
GD507-10450C
Proposition 65:
Y
Product Level:
Premium Performance
Track / Autocross:
9/10
Street Performance:
8/10
Racing Competition:
9/10
Daily Driving Comfort:
7/10
Visual / Aesthetic Upgrade:
8/10
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