Build Power With Confidence
If you’re pushing your EA839 2.9T or 3.0T to the next level, reinforcing your engine is no longer optional—it’s essential.
We’re excited to introduce two new upgrades designed to help you safely maximize power and reliability:
M11 Head Stud Kit – Built for High Boost Confidence
As boost and cylinder pressure increase, factory head bolts can stretch and lose clamping force, especially under heat and repeated pulls. Our M11 Head Stud Kit is engineered to eliminate that weak point.
With tensile strength exceeding 270,000 psi and ~80% greater strength than OE bolts, these studs help prevent head lift and keep your engine sealed under extreme conditions.
Why You’ll Want It:
- Supports higher boost and power levels
- Helps prevent head lift under load
- Reusable hardware for long-term value
- Ideal for tuned, upgraded turbo, or track-driven builds
Note: Engine machining is required for installation.
M10 Main Stud Kit – Strengthen Your Bottom End
More power means more stress on your engine’s bottom end. The M10 Main Stud Kit is designed to keep everything locked down when it matters most—maintaining main cap stability and proper bearing alignment under heavy load.
With over 260,000 psi tensile strength, these studs provide the confidence needed for high-performance and high-heat environments.
Why You’ll Want It:
- Improves bottom-end stability
- Designed for high-horsepower applications
- Reusable, high-strength construction
- Perfect for builds, track use, and aggressive tuning
The Smart Upgrade Path
Already planning engine work? Installing both head and main studs at the same time helps reinforce multiple critical areas—giving you a stronger, more reliable foundation for higher power.
If your engine is already apart, upgrading head & main studs is a smart move. Pairing this kit with our bottom-end package helps address multiple stress points at once—setting your build up for long-term success.
Built for Enthusiasts Who Demand More
Whether you’re chasing big power numbers or building for long-term reliability, these upgrades are designed to help your EA839 perform at its best—without compromise.