Description
If you’re tuning a coil-over suspension system, spring rate is everything—and 450 lb/in gives you the responsive, linear support needed for consistent track performance without sacrificing street comfort. This QA1 spring delivers predictable load characteristics across the suspension travel, making it ideal for both competitive racing and high-performance street applications. The 2.5-inch inner diameter and 12-inch length integrate seamlessly into most coil-over kits, while the durable black powder coat resists corrosion in demanding environments.
- 450 lb/in rate
- 2.5 inch ID
- 12 inch length
- Black powder coat
- Coil-over compatible
- Single spring unit
- QA1 manufactured









