Supertech Titanium Retainer for Spring 6.6mm Stem 7 Degree - Set of 16

Upgrading your valve springs and retainers is the best way to help your car rev higher. If you are looking to increase the horsepower of your engine, your may have considered rebuilding the head. When rebuilding your engine's head, we recommend upgrading your valves, and springs. This will increase airflow and the RPM of your engine. Supertech provides the racing market with superior valves and valve train components for virtually every type of racing. Whether it's Drag Racing, Rally, Road Racing or any other type of motorsport, Supertech is sure to have the perfect performance solution for your application. If not, we are always willing to work with you to custom manufacture the solution that is just right for you.