2001-2021 Duramax ARP Up Pipe Bolts (10232)Replace your rusty or broken exhaust manifold up pipe bolts in your 6. 6L Duramax with the ARP 10232 bolts. Each kit includes 3 bolts and 3 washers and will work for the exhaust manifold flange as well as the turbo flange. Each up pipe on your Duramax requires TWO of these kits and requires FOUR of these kits to replace both up pipes. KIT INCLUDES 3 ARP Exhaust Manifold UP Pipe Bolts 3 Washers BENEFITS Replaces Rusty OEM Bolts Direct Replacement