HYPERCO Composite Leaf Springs Features & Benefits: Lighter: Composite springs are approximately 70% lighter than steel. Our Epoxy matrix Composite material has been adapted from the aerospace industry to provide high yield strength, retention of design at a very light weight. Quick Response: Composite springs respond quicker than steel springs. Specific strain energy is a characteristic of composite material when used as a spring. Their responsiveness is through the storage and release of energy which is greater than steel. This allows wrap-up and then the unwinding of the spring quicker and with more consistency. Consistent: Composite springs provide the users with a product that remains more consistent than steel. Elastic deformation effects on steel are far greater than on composite. Steel springs begin as flat blade, then bent to the desired arch. Through dynamic loading, the steel gradually returns to its original shape, thus losing ride height and rate. Composites retain their original designed arch and resist relaxing which yields a longer spring life. Cost Effectiveness: Composites initial costs are greater when compared to steel. Composites last 5 times longer than steel in most applications. In racing, chassis setup, the spring's consistency, and the spring's reactiveness, also have a value. When these features are added together, composite springs cost effectiveness is far greater than that of steelPit Stop USA offers Hypercoils Chrysler Composite Leaf Spring - 150# Rate 10220 at low everyday prices. Be sure to check out all of our products from Hypercoils including Hyperco Chrysler Composite Leaf Springs.