RACE TECH Front/Rear Spring - Blue - Sport Series - Spring Rate 300 lbs/in SRSP 552454

If you're building a competitive race car or upgrading a performance suspension, spring rate directly impacts your vehicle's handling balance, lap times, and driver confidence. The RACE TECH Sport Series delivers the consistency and durability required for track days and amateur racing, with engineering tight enough to support repeated hard cornering without degradation. At 300 lbs/in, this spring rate suits mid-weight performance cars and serves as a solid baseline for tuning.

What sets this spring apart is the manufacturing process. Chrome silicon wire, shot-peening, and precision heat treatment work together to maximize fatigue resistance—critical when you're cycling through compression and extension hundreds of times per lap. The preset design eliminates sacking (permanent deformation), so you won't experience spring settling over time, keeping your suspension geometry stable across multiple track sessions.

• Spring rate: 300 lbs/in
• Material: Chrome silicon wire
• Shot-peened finish
• Heat-treated construction
• Preset design
• Engineering tolerance: ±0.05 kg/mm
• Fitment: Front or rear application
• Installation: Bolt-on replacement
• MPN: SRSP 552454