Stainless Steel Black Nitride Intake Valves for a BMW N54 Turbo

STAINLESS STEEL BLACK NITRIDE INTAKE VALVES for BMW N54 Turbo

Supertech's Black Nitride intake valves for the BMW N54 Turbo are manufactured from premium EV8 (21-4N) stainless steel and finished with a proprietary Black Nitride surface treatment. This coating provides superior hardness, reduced friction, and enhanced corrosion resistance compared to standard stainless valves.

Each valve is precision-machined to OEM tolerances and undergoes rigorous quality control including dimensional inspection, hardness testing, and surface finish verification. The result is a valve that delivers consistent, reliable performance in both street and competition BMW N54 Turbo builds.

KEY FEATURES

• EV8 / 21-4N stainless steel base material for high-temperature strength
• Black Nitride surface treatment for reduced friction and wear resistance
• Precision-ground 4.96mm stem and dished face for optimal sealing
• Swirl-polished underhead for improved intake flow
• 31.40mm head diameter, compatible with standard valve guides and seats
• Single Groove lock groove design for secure retention
• Available in standard and oversize diameters

APPLICATIONS

Ideal for naturally aspirated, turbocharged, and supercharged BMW N54 Turbo builds where reliable high-RPM airflow is critical. The swirl-polished intake valve improves flow while the Black Nitride surface resists wear in demanding builds.

This part also goes by the following cross reference.

Cross Reference Part Number: sptBMIVN-1054S-12