QA1 7HT400B High Travel Coil Spring 2.5" ID 7" Length 400 lb/in Black

QA1's 2.5" diameter high travel coil springs are designed for those who demand reliable performance from their suspension, offering a balanced combination of maximum travel, consistent performance, and long-term durability for both track and street use. These springs are engineered with smaller diameter high-tensile chrome silicon alloy wire and fewer coils, allowing them to compress further before reaching solid state and maximizing available suspension travel without bottoming out.

Key Features:

• 400 lb/in Spring Rate: Linear rate design ensures consistency and predictability in suspension performance
• High Travel Design: Lighter weight with increased travel due to larger distance between coils, reducing unsprung weight for faster reaction and optimized suspension performance
• Chrome Silicon Alloy Construction: Made from high-tensile chrome silicon alloy wire, keeping the spring lightweight without sacrificing strength while being tough enough for racing and street use
• Black Powder Coat Finish: Durable protective coating for corrosion resistance and sleek appearance
• 7" Free Length: Optimal for coilover applications requiring this specific dimension
• 2.5" Inner Diameter: Compatible with standard 2.5" I.D. coilover hardware
• Precision Ground Ends: Both ends are ground flat for straight, consistent operation

QA1 high travel springs are proudly made in the USA and come with a lifetime warranty to remain within 2% of original free height and spring rate under normal operating conditions. Whether you're building a high-performance street machine or a dedicated race car, this spring delivers the reliability and performance QA1 is known for.