Supertech Black Nitride Valves for Honda S2000 F20 F22 Select::Exhaust 31.0mm Flat (1 Single) (HEVN-1030F-1) not just a vague guess

not just a vague guess at where to set your boost

the valve cover vents are routed into the top inlet where the stainless steel condensing material separates the oil from the gasses

• Suction tube S-4 ( left bank 60φ) ×1

These are different per side LH or RH

• 304 Stainless fire-ring

Supertech Black Nitride Valves for Honda S2000 F20 F22 Select::Exhaust 31.0mm Flat (1 Single) (HEVN-1030F-1) not just a vague guessSupertech black nitride exhaust and intake valves for F20 F22 Honda S2000. These valves are available in various sizes to match your head diameter. Sold as a set of 8 or individually as needed. Please do all your research and consult your engine builder if necessary! Black nitride valves are made from one piece forged stainless steel then go through a special hardening process to lessen the friction between the valve and guide. Vehicle Fitment: 2000