SKU: QA1CK2690
UPC: 806990168511
MPN: CK2690
The QA1 Coil Over Kit 2.5IN ID 26 Series 9IN Stroke is a professional-grade suspension upgrade designed for high-performance vehicles requiring precise ride height adjustment and improved handling dynamics. This complete coil-over assembly combines a 2.5-inch inner diameter spring with a 9-inch stroke shock absorber, making it ideal for street, strip, and road course applications where tunable suspension geometry is essential. Whether you're building a track-focused machine or seeking superior ride quality with adjustable spring preload, this kit delivers the engineering and durability expected from QA1's 26 Series shock line.
The kit features a black anodized aluminum construction that resists corrosion while maintaining a clean, professional appearance. The 9-inch stroke length provides substantial wheel travel, accommodating aggressive suspension geometry changes and anti-squat tuning without binding at full compression or extension. QA1's 26 Series shocks are known for their internal monotube design and twin-tube shock options that deliver consistent dampening across a wide range of operating conditions. The 2.5-inch coil spring fits standard coil-over sleeves, and the system's modular design allows for spring rate and preload adjustments to fine-tune vehicle balance, roll stiffness, and vertical frequency for your specific driving demands.
This coil-over kit is best suited for dedicated enthusiasts, professional fabricators, and race teams who understand suspension setup and require a fully adjustable platform. Installation typically requires custom mounting points or integration with existing coil-over platforms on tube frame vehicles, vintage muscle cars, and modern performance builds. The compact 6.4 x 4.4 x 8.7-inch package weighs just 1.5 lbs per unit, making it practical for weight-conscious builds. QA1's reputation for quality control ensures repeatability and longevity; proper installation, regular maintenance, and correct spring selection according to vehicle weight are critical to maximizing performance and component lifespan.
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