Wagner Tuning Nickel-Plated Head Stud Set for A80 Toyota Supra (with 2JZ-GTE engine)

The Wagner Tuning Nickel-Plated Head Stud Set for the A80 Toyota Supra 2JZ-GTE is engineered to deliver the clamping force needed for high-output, high-boost builds where factory head bolts can become a weak point. Replacing the OEM cylinder head bolts, this kit features Wagner Tuning Pro-Series 18.8 high-strength stud bolts with an exceptional tensile strength rating of 1850 N/mm², helping prevent bolt stretch and reduce the risk of cylinder head lift under increased cylinder pressure. Each stud is finished in durable nickel plating to improve corrosion resistance and long-term durability, and the reusable design avoids the need for replacement after disassembly, making it a dependable upgrade for serious 2JZ builds focused on strength, reliability, and long-term serviceability.

High-Quality Materials and Production

• Wagner Tuning manufactures its Pro-Series 18.8 stud sets in Germany from a proprietary high-strength steel. After heat treatment, the studs exceed 1850 N/mm² in tensile strength. Rather than being cut, the threads are rolled to increase thread flank strength by roughly 30%. A durable nickel finish is applied to each fastener for lasting corrosion protection, even in demanding operating conditions.

Easy Installation and Durability

• Pro-Series stud bolts are designed with an internal hex drive on the head side for precise, controlled installation. On the block side, a conical support section helps transfer load against the bore instead of the thread flanks as the nuts are torqued, reducing stress on the engine block threads during repeated assembly common in motorsport applications. Each kit includes matching high-strength nuts and, where required, washers built to the same 1850 N/mm² tensile strength standard, offering a clear durability benefit compared to many other fastener options.

Features

• Pro-Series 18.8 high-strength head stud design
• Nickel-plated finish
• Manufactured in Germany from specially developed steel
• Rolled threads for approximately 30% greater thread flank strength
• Internal hex socket drive
• Conical seating design
• Designed to prevent cylinder head lift under high load
• Reusable studs that do not require replacement after disassembly
• Includes matching high-strength nuts and washers rated at 1850 N/mm²
• Engineered for high-performance and racing engine applications
• Set of 14 head studs
• Made in Germany

Specifications

• Construction: Pro-Series 18.8 steel
• Tensile Strength: 1850+ N/mm² (270,000+ PSI)
• Finish: Nickel-plated

What’s Included

• M11 stud bolts (14)
• M11 nuts (14)
• Washers (14)
• Lubricant for assembly
• Assembly instructions

Applications

• Toyota Supra: A80 | 1994-1998 | 2JZ-GTE 3.0L I6 twin-turbo

Notes

• Also available in a black oxide burnished finish here

About Wagner Tuning

Wagner Tuning is a Germany-based performance engineering brand specializing in high-efficiency charge-air cooling and intake solutions for modern turbocharged vehicles. Known for its competition-proven intercoolers and precision-manufactured components, Wagner Tuning combines advanced R&D, CFD analysis, and rigorous testing to deliver measurable performance gains, improved thermal stability, and long-term reliability. With a strong focus on motorsport-inspired engineering and OEM-level fit and finish, Wagner Tuning products are designed to support both high-performance street driving and demanding track use across a wide range of European and international platforms.