XDP XD386 Performance Valve Springs & Retainer Kit 01-16 GM 6.6L Duramax SB-76-1007 Adding two more solenoids allows

Adding two more solenoids allows each trumpet to have a dedicated air source for dramatically increased flow and a train horn that will push your Demon over the edge

including Models 30301 or 30302

This kit features a digital gauge

The Edge EAS (Expandable Accessory System) Power Switch allows CTS owners to install the new switch system and use Edge's MyStyle software to name your accessory to display right on the screen and take advantage of Edge's clean EAS daisy chain system to turn engage and disengage your truck's accessories

The part time operation model works by monitoring your boost

XDP XD386 Performance Valve Springs & Retainer Kit 01-16 GM 6.6L Duramax SB-76-1007 Adding two more solenoids allowsAdd performance, durability, and longevity to your Duramax by upgrading with this complete valve spring and retainer kit from XDP. The XDP Performance Valve Spring & Retainer Kit features a conical design for better valve control over the standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped to ensure quality and long term