Product Description
BMW 6mm Exhaust Viton Valve Stem Seal Set - Supertech VSI-EC60E-8
Supertech Valve Stem Seals are engineered to deliver maximum oil control and longevity for the exhaust side of the cylinder head. Built with advanced materials and tight production tolerances, these seals are ideal for high-performance engines that operate at elevated temperatures and RPMs.
Designed to fit BMW S63B44 configurations, each seal supports optimal valve movement while preventing oil intrusion into the combustion chamber. With high resistance to heat and wear, they are trusted by builders and racers worldwide.
This product supports a 6mm valve stem, fits valve guides with a 10.04mm outer diameter, and has a [Seal OD] outer diameter for precise seating and sealing.
Features:
- Precision-fit for BMW S63B44 applications
- Designed for use on the exhaust valve side
- 6mm valve stem compatibility
- 10.04mm guide fitment | [Seal OD] seal OD
- Constructed from high-temperature, oil-resistant compounds
- To be used with Supertech springs only
- This is a set of 8 seals and only for the exhaust side
Benefits:
- Improves oil control at high RPM and boost
- Reduces wear and extends valve train life
- Prevents oil burning and carbon buildup
- Perfect for high-performance street and race builds

Located in San Jose, California in the heart of Silicon Valley, Supertech was born from the same fertile ground as many other companies in this area utilizingcutting edge technology to fuel growth.
Supertech fuses this technology with passionate people and over 30 years of experience in creating the highest performance valves and valve train components available.
Supertech provides the racing market with superior valves and valve train components for virtually every type of racing. Whether it’s Drag Racing, Rally, Road Racing or any other type of motorsport, Supertech is sure to have the perfect performance solution for your application. If not, we are always willing to work with you to custom manufacture the solution that is just right for you.