Buy 2010 Subaru STI Coil Spring (Front). Suspension Coil Spring Your coil springs are not especially Springs, Suspension - OEM Subaru Part # 20330FG530

COIL SPRING-FRONT Coil Spring

Fits STI, WRX

Suspension Coil Spring
Your coil springs are not especially prone to failure, but if they have been cut, clamped, or heated to have the vehicle lowered, your Subaru might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Subaru service department to have your suspension system evaluated.