Wether its turbo, Nitrous or Methanol you are running with your MT07 or R7 your engine may benefit by using head studs to give additional head clamping force & less chance of the head lifting during high power/high boost situations.
These M10 200 000 Psi tensile strength head studs are a direct replacment part.
Sold as a set of 6 studs, 6 Nuts, 6 washers & ARP lube.