High-tensile chrome silicon steel construction ensures strength and fatigue resistance for long-lasting use
2% tolerance within manufactured spring rate provides consistent performance across all seasons
Ultra-lightweight design reduces unsprung mass for improved handling and ride comfort
Powder-coated, salt spray tested finish withstands extreme temperatures and harsh conditions
Compatible with most coil over systems using 2.5 or 2.75 inch inner diameters for versatile fitment
Summarized by Shop
Function Performance Spring (FPS) was created with keeping your best interest in mind. It will improve your ride, your handling and increase the life of your strut whether your car is a daily driver or a track car. For those seeking consistency on the track, our FPS offers a 2% tolerance within manufactured spring rate while offering weig