Take your EA839 build to the next level with the first 12mm Head Stud Kit developed for the EA839 2.9T and 3.0T platforms. Designed for enthusiasts seeking extreme power levels, the 034Motorsport M12 Head Stud Kit offers an upgraded head stud solution for high-output engine builds where head-clamping security is a priority.
Manufactured from high-strength tool steel, the M12 studs feature a laboratory-verified tensile strength exceeding 321,000 psi (2,213.22 N/mm²). The kit includes matching high-strength tool-steel nuts, reusable studs, and precision-drive features designed to facilitate installation and proper tightening.
Whether you're currently running a Stage 3 hybrid turbo setup or planning to step up to larger, full-frame turbochargers in the future, the 034Motorsport 12mm Head Stud Kit is designed for enthusiasts building toward the next level of EA839 performance.
WHY CHOOSE M12 HEAD STUDS?
First M12 Head Stud Kit for the EA839: Developed specifically for the EA839 2.9T and 3.0T platforms, the 034Motorsport M12 Head Stud Kit offers an upgraded head stud solution for enthusiasts pursuing power levels beyond conventional hybrid turbo setups.
Engineered for Extreme Power Builds: The 034Motorsport 12mm Head Stud Kit is designed for EA839 builds targeting power levels beyond conventional Stage 3 hybrid turbo setups. With 19% greater tensile strength than M11 head studs and 114% greater than OE head bolts, the M12 kit is ideal for enthusiasts pursuing extreme power or planning future upgrades to larger, full-frame turbochargers. The 034Motorsport 11mm Head Stud Kit remains an excellent option for Stage 3 hybrid turbo builds supported by our tuning.
321,000+ PSI Tensile Strength: Manufactured from high-strength tool steel, the M12 studs deliver laboratory-verified tensile strength exceeding 321,000 psi (2,213.22 N/mm²).
19% Stronger Than M11 Studs: The M12 studs offer a 19% increase in tensile strength over M11 head studs, providing additional strength for demanding engine builds.
114% Stronger Than OE Head Bolts: With more than double the tensile strength of OE head bolts, the M12 studs are engineered for high-performance applications.
Reusable Stud Design: Unlike OE head bolts, the studs can be reused when following the specified installation and reuse procedures.
HIGH-STRENGTH HARDWARE THROUGHOUT
M12 Head Studs
- Manufactured from high-strength tool steel
- Laboratory-verified tensile strength exceeding 321,000 psi (2,213.22 N/mm²)
- Hex-drive end for easy installation
- Reusable design
- 19% stronger than 034Motorsport M11 head studs
- 114% stronger than OE head bolts
Matching Head Stud Nuts
- Manufactured from high-strength tool steel
- Strength matched to the studs
- 12-point drive for ideal tightening torque
IMPORTANT INSTALLATION REQUIREMENT
The engine block, cylinder heads, and head gaskets require machining or modification to accommodate the larger M12 head studs. This kit is not a direct, drop-in replacement for the M11 head stud kit or stock head bolts. Plan for the required machining and verify compatibility with your engine build before installation.
