For drivers seeking a more aggressive suspension setup without sacrificing precision or durability, our coilover springs 12k 8″ offer the perfect solution. With a 12k spring rate, 2.5-inch inner diameter (64mm), and an 8-inch height, these performance springs are engineered for high response, improved stability, and long-lasting performance. Each set is sold in pairs (2) and is compatible with Function and Form Type 1, Type 2, Type 3, and Type 4 coilover systems.
Ideal for serious street enthusiasts and weekend warriors, the 12k spring rate provides firm support under compression, making it suitable for lowered vehicles, heavier chassis, or track builds that require minimal body movement. These springs help reduce squat during acceleration, improve turn-in response, and enhance chassis composure during high-speed transitions, offering a more connected and responsive driving experience.
With an 8-inch free length, these springs allow for increased shock travel, especially beneficial on uneven or undulating road surfaces. The 2.5” inner diameter ensures easy compatibility with a wide range of coilover platforms beyond just Function and Form—making them ideal for universal or custom suspension setups where exact fitment is key.
Constructed from premium-grade high-tensile steel and precision cold-wound, these springs are built to endure repeated stress cycles without sagging or fatigue. Their corrosion-resistant powder-coated finish protects them from rust, moisture, and road debris, extending their functional lifespan and maintaining consistent performance.
Whether you’re daily driving with a performance focus or setting up a car for autocross, time attack, or road racing, these coilover springs 12k 8″ are engineered to meet your suspension demands. They deliver a controlled, planted ride while offering the tuning flexibility needed to get the exact feel you want on your build.
Dial in your suspension the right way. With the right balance of spring rate, stroke, and durability, the coilover springs 12k 8″ help take your vehicle’s handling to the next level.
