Ferrea Nissan RB25DET 30.6mm 5.96mm 88.95mm 21 Deg Flo +1mm Super Alloy Exhaust Valve - Set of 12

When you're rebuilding the top end of your Nissan RB25DET, especially for a performance build, you need components that can handle the heat and pressure. This set includes 12 Ferrea F2150P Super Alloy Exhaust Valves, designed to be a direct replacement for your stock valves. Each valve measures 30.6mm in diameter with a 5.96mm stem and a 88.95mm overall length, featuring a 21-degree face angle and a +1mm oversized head for improved flow. The super alloy construction is key here; it's chosen for its ability to withstand the extreme temperatures found in performance exhaust ports, helping to prevent valve distortion or failure under demanding conditions.

Ferrea is known for making well-built valvetrain components, and these exhaust valves are no exception. The material is selected for its high-temperature strength and resistance to corrosion, which is crucial for longevity in a performance engine. The +1mm oversized head is a notable feature that can contribute to improved airflow out of the cylinder, potentially boosting performance when paired with other engine modifications. These valves are intended for engines where reliability and durability are paramount, ensuring that your engine's breathing system can keep up with increased power demands.

This set provides all 12 exhaust valves needed for a complete RB25DET engine rebuild. When installing, always refer to the manufacturer's specifications for proper valve seating, spring pressures, and clearances to ensure optimal performance and longevity. These valves are a solid option for anyone looking to build a robust and high-performing RB25DET engine.