QA1 Coil Spring 2.5in ID x 10in Black 10HT150B

If you're building a coil-over suspension system or upgrading your existing setup, spring rate is everything—and this QA1 unit delivers the consistency you need for predictable handling and reliable load support. At 150 lb/in, this spring strikes a balance between responsive feedback and durability, making it a solid choice for street-tuned performance cars and entry-level track builds. The 2.5-inch inner diameter and 10-inch length are industry-standard dimensions that integrate seamlessly into most modern coil-over platforms.

Technical Specifications:

• Coil spring design
• 2.5 inch inner diameter
• 10 inch length
• 150 lb/in spring rate
• Black powder coat finish
• Sold individually
• QA1 manufactured (10HT150B)