QA1 12HT350 High Travel Coilover Spring 2.5" ID 12" Length 350 lb/in Rate

The QA1 12HT350 is a high-performance coilover spring engineered to maximize suspension travel without compromising durability or performance. Featuring a 2.5-inch inside diameter, 12-inch free length, and 350 lb/in spring rate, this spring is designed for both street and racing applications where reliable suspension performance is critical.

High Travel Design:

Manufactured from high-tensile chrome silicon alloy wire with fewer coils and a smaller wire diameter, this spring compresses further before reaching solid state, allowing you to take full advantage of available suspension travel without bottoming out. Compared to conventional springs, the high travel design reduces weight up to 28 percent and increases travel up to 20 percent.

Key Features:

• 2.5-inch inside diameter, compatible with standard 2.5" coilover hardware
• 12-inch free length with 350 lb/in linear spring rate
• High-tensile chrome silicon alloy construction for strength and reduced weight
• Silver powder coated finish for corrosion resistance
• Ground and squared ends for consistent, accurate operation
• Cold wound, heat treated, and shot peened for durability
• Clearly marked with length and rate for easy identification
• Reduces unsprung weight for faster suspension response
• Can be compressed to coil-bind without affecting spring rate or free height

Quality and Warranty:

Proudly made in the USA, QA1 high travel springs are backed by a lifetime warranty to remain within 2% of original free height and spring rate under normal operating conditions. Each spring undergoes intensive manufacturing processes to ensure consistency, accuracy, and long-term durability whether you're on the track or street.