Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 The gas pressure of the

The gas pressure of the sealed hyperscrew configurations is only adjustable by QA1 and QA1 Authorized Rebuilders per sanctioning body

the kit features durable bushings with clamshells and billet aluminum end links for the rear sway bar

These adjustable front sway bar end links offer the ability to tune front suspension and improve handling

Sway bar mounts will fit with the following UMI part numbers- 2245-275

These mufflers are available in 439 stainless steel

Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 The gas pressure of theFrom 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.