Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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QA1
QA1 GM Pro Front Coil-Over System - Single Adjustable - 10in x 400lbs/in - Select 1967-1974 GM - GS401-10400A
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1967-1974 Buick Apollo, Chevrolet Camaro, Chevrolet Chevy II/Nova, Oldsmobile Omega, and Pontiac Firebird/Ventura.
The QA1 GM Pro Coil System offers a direct bolt-in solution for enthusiasts seeking precise ride height control and adjustable damping. This system features single-adjustable billet aluminum shocks, allowing you to tune compression and rebound simultaneously with a single knob. The 10-inch high-travel springs use a 400 lbs/in rate and a pigtail-style seat, designed to fit into factory spring pockets while providing a modern coil-over conversion. The threaded shock bodies enable fine-tuned stance adjustments and corner balancing, significantly improving handling dynamics for street performance, autocross, or drag racing.
- Single Adjustability: Simultaneous compression and rebound valving control for simplified tuning.
- Billet Aluminum Construction: Lightweight, durable, and 100% dyno tested and serialized.
- High Travel Springs: American-made springs with fewer coils and smaller wire diameter for increased travel and reduced unsprung weight.
- Ride Height Adjustable: Fully threaded body allows for the perfect stance and weight distribution.
- Pigtail Design: Specifically engineered to interface with original equipment mounting configurations.
- Serviceable Design: Rebuildable and serviceable by QA1 authorized centers to ensure long-term reliability.
- Made in the USA: Engineered and manufactured for superior quality and fitment.
- MPN: GS401-10400A
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1974 | Buick | Apollo | Base |
| 1967-1969 | Chevrolet | Camaro | Base |
| 1967-1969 | Chevrolet | Camaro | RS |
| 1967-1969 | Chevrolet | Camaro | SS |
| 1967-1969 | Chevrolet | Camaro | Z28 |
| 1968 | Chevrolet | Chevy II | Nova |
| 1969-1974 | Chevrolet | Nova | Base |
| 1973-1974 | Chevrolet | Nova | Custom |
| 1973-1974 | Oldsmobile | Omega | Base |
| 1967 | Pontiac | Firebird | 326 |
| 1968-1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1967-1969 | Pontiac | Firebird | 400 |
| 1967-1969 | Pontiac | Firebird | Base |
| 1967-1968 | Pontiac | Firebird | HO |
| 1967-1969 | Pontiac | Firebird | Sprint |
| 1969 | Pontiac | Firebird | Trans Am |
| 1971-1974 | Pontiac | Ventura | Base |
| 1973-1974 | Pontiac | Ventura | Custom |
| 1974 | Pontiac | Ventura | GTO |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
QA1 GM Pro Front Coil-Over System - Single Adjustable - 10in x 400lbs/in - Select 1967-1974 GM - GS401-10400A
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Fits select 1967-1974 Buick Apollo, Chevrolet Camaro, Chevrolet Chevy II/Nova, Oldsmobile Omega, and Pontiac Firebird/Ventura.
The QA1 GM Pro Coil System offers a direct bolt-in solution for enthusiasts seeking precise ride height control and adjustable damping. This system features single-adjustable billet aluminum shocks, allowing you to tune compression and rebound simultaneously with a single knob. The 10-inch high-travel springs use a 400 lbs/in rate and a pigtail-style seat, designed to fit into factory spring pockets while providing a modern coil-over conversion. The threaded shock bodies enable fine-tuned stance adjustments and corner balancing, significantly improving handling dynamics for street performance, autocross, or drag racing.
- Single Adjustability: Simultaneous compression and rebound valving control for simplified tuning.
- Billet Aluminum Construction: Lightweight, durable, and 100% dyno tested and serialized.
- High Travel Springs: American-made springs with fewer coils and smaller wire diameter for increased travel and reduced unsprung weight.
- Ride Height Adjustable: Fully threaded body allows for the perfect stance and weight distribution.
- Pigtail Design: Specifically engineered to interface with original equipment mounting configurations.
- Serviceable Design: Rebuildable and serviceable by QA1 authorized centers to ensure long-term reliability.
- Made in the USA: Engineered and manufactured for superior quality and fitment.
- MPN: GS401-10400A
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1974 | Buick | Apollo | Base |
| 1967-1969 | Chevrolet | Camaro | Base |
| 1967-1969 | Chevrolet | Camaro | RS |
| 1967-1969 | Chevrolet | Camaro | SS |
| 1967-1969 | Chevrolet | Camaro | Z28 |
| 1968 | Chevrolet | Chevy II | Nova |
| 1969-1974 | Chevrolet | Nova | Base |
| 1973-1974 | Chevrolet | Nova | Custom |
| 1973-1974 | Oldsmobile | Omega | Base |
| 1967 | Pontiac | Firebird | 326 |
| 1968-1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1967-1969 | Pontiac | Firebird | 400 |
| 1967-1969 | Pontiac | Firebird | Base |
| 1967-1968 | Pontiac | Firebird | HO |
| 1967-1969 | Pontiac | Firebird | Sprint |
| 1969 | Pontiac | Firebird | Trans Am |
| 1971-1974 | Pontiac | Ventura | Base |
| 1973-1974 | Pontiac | Ventura | Custom |
| 1974 | Pontiac | Ventura | GTO |
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We only sell authentic products from verified brand partners and retail partners globally.
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