DP H11 Pro Series Headstuds for Toyota GR Yaris & GR Corolla G16E-GTS Engines

Designed specifically to prevent the cylinder head lifting in applications where boost levels exceed 30psi, these custom DP H11 tool steel headstuds are the ideal choice. They have been rigorously tested in the 3Banga GR Yaris which puts out over 400kw at the wheels.

These headstuds, specifically manufactured for us, surpass the strength of standard 8740 chromoly and H13 tool steel. Our H11 Pro Series Headstuds boast an impressive tensile strength of 260,000 psi.

Aside from our great value for money, what sets our headstuds apart from the competition?

• The inclusion of a dogpoint feature ensures that the stud seats securely in the block, providing optimal preloading for a consistently accurate torque sequence. Precise torquing is crucial for headstud performance, and we’ve taken every measure to guarantee accuracy and repeatability.
• These headstuds serve as a direct OEM replacement, requiring no modifications.
• Both the washers and nuts are crafted from the same high-grade H11 tool steel material.
• The hex broach feature on the stud facilitates easy installation.
• Comes with complete with ARP Moly Lube and instructions.