2001-2016 GM 6.6L Duramax Up-pipes Bolt Set 12pcs PPE Turbo Kits and Parts Ready for Head Studs -

Ready for Head Studs - Machined and milled specifically for easy installation of head stud kits (Gator or other brands)

and both 4-channel and 5-channel Analog or Frequency modules

They're a perfect replacement for off-roaders who like to go rock crawling or for drivers who want to get the most out of their vehicle's handling

these rod bolts are built from high-strength HD220 material to reinforce your connecting rods

High-silicon ductile cast iron

2001-2016 GM 6.6L Duramax Up-pipes Bolt Set 12pcs PPE Turbo Kits and Parts Ready for Head Studs -OEM design with washers. Thread length increased to accommodate washer thickness. Two screws are 5 mm longer to accommodate the downpipe mounting bracket. Our design preserves thread engagement whereas other companies do not. All 12 screws will be alloy steel 12 point screws in black oxide finish, class 12. 9. (10) M10 x 1. 5 x 32 bolt and washer (12) M10 washers (2) M10 x 1. 5 x 37 bolt and washer OEM design with washers. Thread length increased to