STK Performance Forged Stainless Steel Valve Inlet – BMW 24v (214-N)

Product Overview

High-performance forged valve manufactured from 21-4N Stainless Steel. One-piece forged construction for exceptional strength and durability. CNC machined and heat-treated for consistency and optimal flow characteristics.

Engine Applications

Fits: E34 5 Series · E36 3 Series (sedan / coupe / convertible) · E36 Compact 323ti · E38 7 Series · E39 5 Series · E46 3 Series · Z3 Roadster (E36/7) · Z3 Coupe (E36/8)

Engine codes
M50 — M50B20, M50B20TU, M50B24TU, M50B25, M50B25TU
M52 — M52B20, M52TUB20, M52B24, M52TUB24, M52B25, M52TUB25, M52B28, M52TUB28
M54 — M54B22, M54B25, M54B30
S50 / S52 / S54 — S50, S52B32, S54

What's Included

Material Specifications

Material: 21-4N Stainless forged valve Construction: One-piece forged, CNC machined, heat-treated Temperature Rating: Above 540°C (1000°F) Features: Precision stem finish, hardened tips, optimized for high-temperature performance

Key Benefits

• Reduced valve mass for quicker engine response
• Improved flow characteristics for maximum power
• Heat and pressure resistance for extreme combustion conditions
• Long-term durability in high-performance applications

Application

Designed for BMW 24-valve engines (M50/M52/M54). Suitable for naturally aspirated and turbocharged applications.

Installation Notes

Professional installation recommended to ensure correct fitment and performance.