Eibach's Coupling Spacers connect the main spring to the tender or helper spring. It is made from light weight anodized aluminum, the aluminum is CNC machined for a precise fit. The Coupling Spacers inside diameter are available for the popular springs. It is designed and manufactured in the United States of America.

Eibach is a company that produces performance suspension for Formula One, NASCAR, WRC, CART, and so on. On occasion it has been said that they produce the finest performance suspension parts in the world. Eibach and its team of engineers develop products to meet the extreme demands required for any racing circuit. It is made with great precision which makes it very durable and ensures a reliable repeatable performance. When other springs sag and wear out, Eibach keeps on going. They know what professional drivers want from their vehicle, and they strive to create the best harmony possible between driver and vehicle on the road. Thus, drivers feel, lesser body rolls in hard cornering, reduced nose dive during braking, less squatting during acceleration, and a more direct handling with greater handling predictability.

Eibach has supported an uncountable number of race winners over the last 20 years from all genres of racing. This is due to the technology applied in making the product parts, from high strength spring steel alloy, to quality corrosion protection, and advanced CNC winding methods hence producing a products that are durable, reliable, and have optimum resistance to stress.