Merchant Automotive 10089 Billet Coolant Block Off Plate 01-16 6.6L GM Duramax BD-1046203 The Stage 1 System is

The Stage 1 System is comprised of 7" lift dual rate coil springs

These shocks include FK bearings

Bosch made an update to the original connector tubes

and allow the turbocharger to spool up faster

Upgrade your boots to the proven Nomex silicone BD hoses and spring loaded clamps

Merchant Automotive 10089 Billet Coolant Block Off Plate 01-16 6.6L GM Duramax BD-1046203 The Stage 1 System isEliminate an existing coolant leak, or stop one before it starts with this block off plate from Merchant Automotive. Featuring a built in o ring and recessed pockets around the mounting holes, you'll be able to reuse the factory bolts to mount this cover at the rear engine coolant port.