PPE Head Stud Kit 17-25 GM 6.6L L5P Duramax REC-264123CL 5 Series coilovers

5 Series coilovers

you must determine if your truck has the pump on the side of the block still or now has the in-tank pump

And if you've got a canopy or tonneau cover

As boost pressures increase

Each pin conatins two keys

PPE Head Stud Kit 17-25 GM 6.6L L5P Duramax REC-264123CL 5 Series coiloversAdding more power to your L5P Duramax? Want to increase your durability and be more reliable? Already opening up the top end of your engine? Head studs are a no brainer to help with all of those situations. Head studs are an absolute must especially when upgrading your turbo. The factory head bolts have essentially one pressure point at the head of the bolt, whereas head studs create two points of pressure creating a much stonger hold on the head.