Carli 2.5" Linear-Rate Front Leveling Coils 05-26 Ford SuperDuty F-250/F-350 4x4 BD-1036606 While both outflow the factory

While both outflow the factory manifold by 50%

coupled with the general design

Built from ARP2000 material that has considerably better fatigue life and the bolts are even reusable

Standard Valving: A softer tune optimized for lighter builds

Carli 2.5" Linear-Rate Front Leveling Coils 05-26 Ford SuperDuty F-250/F-350 4x4 BD-1036606 While both outflow the factoryIf you're not wanting a complete lift, but want some of the benefits of a Carli Suspension System, install a set of their 2. 5" multi rate coils that will provide you with a level stance without touching the rear leaf springs. Carli's Linear Rate coil springs are built with a custom wind, giving them a smooth, linear rate. This design delivers subtle initial compression feel on highway chatter and small bumps as well as smooth compression deeper into