Description
A precision exhaust valve is critical to maintaining optimal engine breathing and combustion efficiency—especially in high-performance applications where valve integrity directly impacts reliability and power output. The PROX 28.1381-1 meets OEM specifications with tight tolerances, ensuring consistent sealing and durability under demanding conditions. Choose this valve when you need a drop-in replacement that doesn’t compromise on quality.
- Manufacturer Part Number: 28.1381-1
- OEM-specification compliance
- CNC-precision manufactured
- Standard size fitment
- Bolt-on installation
- High-grade materials






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