Supertech Valve Spring Kit – EA888 Gen 3 (High Performance Upgrade)

The Supertech Valve Spring Kit for EA888 Gen 3 engines is designed for high performance and high boost applications where the factory valve springs can become a limitation.

Stronger springs improve valve control at higher RPM and under increased boost pressure, helping prevent valve float and ensuring stable valvetrain operation in performance builds.
This kit is ideal for hybrid turbo, big turbo, and high power EA888 Gen 3 engines where reliability at higher engine speeds is critical.

Features
✔ Supertech high performance valve springs
✔ Increased seat pressure for improved valve control
✔ Designed for high RPM and high boost applications
✔ Direct upgrade for EA888 Gen 3 cylinder heads
Suitable For

EA888 Gen 3 engines including:
• Golf R
• Audi S3
• Golf GTI
• Cupra models
• Engines codes such as CJX / DJH / DNU

Recommended For
• Hybrid turbo builds
• Big turbo setups
• High RPM applications
• Performance engine rebuilds