Manley Valve Spring, SPRING-1440 POLISHED 2003 Ford Explorer Sport Trac This design gives you a

This design gives you a strong control arm that greatly improves performance with zero deflection

designed to improve handling and reduce wheel hop

smoother acceleration

This 17" high output two-speed fan is one of the best in our line-up offering up to 2400 CFM and is specifically designed to thrive on thick

Manley Valve Spring, SPRING-1440 POLISHED 2003 Ford Explorer Sport Trac This design gives you aFrom drag strips to short track and endurance circuits, the Manley NexTek series is engineered for serious racers. NexTek springs resist pressure loss and valve train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high RPM performance. Built to outperform and outlast in real world competition.