Ferrea Subaru FA20 30mm 5.45mm 97.6mm 29 Deg Flo Flat Head +1mm 6000 Series Exhaust Valve - Set of 8

This is a set of eight Ferrea 6000 Series exhaust valves, specifically made for Subaru FA20 engines. These valves measure 30mm in diameter with a 5.45mm stem and a 97.6mm overall length, featuring a +1mm oversized head for improved flow. The flat head design with a 29-degree seat angle is intended to help your engine breathe better.

Ferrea uses high-strength stainless steel alloys for their 6000 Series valves, which are known for their durability and resistance to high temperatures and pressures found in performance applications. The +1mm oversized head is a common modification to increase the valve's surface area, allowing for more air and exhaust gas to pass through, which can lead to better performance. These valves are designed to fit directly into the FA20 engine's cylinder head, replacing your stock exhaust valves.

When rebuilding or upgrading the top end of your Subaru FA20, using well-built valves like these from Ferrea is important for ensuring reliable performance and longevity. Make sure to check manufacturer specifications for proper installation and any related components needed for your specific build.