Supertech BMW M50/M52/S50/S52 Black Nitrided Exhaust Valve - +1mm Oversize - Set of 8
The Supertech ST-BMEVN-1031S-8 Black Nitride exhaust valve kit is purpose-built for BMW S42, M42, M50, S50, S52, M52, M54 (1.8/2.5/2.8/3.0 16V/24V) engines. The +1mm oversize, forged stainless steel valves feature a durable black nitride coating to maximize performance and reliability in high-stress, high-temperature, or turbocharged setups common in motorsport and advanced tuning.
Key Features:
Material: One-piece forged stainless steel with Black Nitride coating for ultimate strength and abrasion resistance.
Oversize: +1mm head diameter for improved flow.
CNC Machined: Precision fit and finish.
Groove: Single groove style for secure valve lock retention.
Durability: Resists carbon buildup, burning, and warping under extreme loads.
Technical Specifications:
| Parameter | Value |
|---|---|
| Type | Exhaust valve |
| Material | Black Nitride stainless steel |
| Head diameter | 31.50mm (+1mm) |
| Stem diameter | 5.95-5.96mm |
| Overall length | 105.65mm |
| Groove | Single groove |
| Set size | 8 pcs |
| Application | BMW S42/M42/M50/S50/S52/M52/M54 |
Applications:
BMW S42, M42, M50, S50, S52, M52, M54 1.8/2.5/2.8/3.0 16V/24V engines requiring uprated exhaust valves.
Kit Includes:
8x Supertech Black Nitride exhaust valves (+1mm oversize)
Main Advantages:
Reduced friction and improved sealing for better performance.
Superior flow and durability at high horsepower/RPM.
Ideal for forced induction, sport, and tuned engine builds.