Tomei Oversized Racing Valve Set For Subaru WRX/STI EJ20 EJ25 Turbo Engines

Tomei Racing Valve for Subaru EJ20 / EJ25 Turbo Engines

Specs:

Intake valve (mm): Head Dia 37.00 + 1.0 / Stem Dia 5.96 / Length 104.35

Exhaust valve (mm): Head Dia 33.00 + 1.0 / Stem Dia 5.96 / Length 104.70

Includes:

Intake racing valve x 8

Exhaust racing valve x 8

Note: Please check your valve spec before purchasing.

Description:

Oversized Valves: The oversized head diameter is designed specifically for each application,
significantly improving the flow rate. (Excl. FA20)

Waisted Stem: The waisted stem allows a greater volume of air/gases to enter
and exit the combustion chamber as the valve extends. (not available on some models)

Engine Specific Design: Each valve is designed and precision machined specifically
for the intended engine/application. The head, face, stem and lock groove designs
have also been optimized to enhance sealing performance, efficiency and durability.

Heat Resistance and Durability:
Intake valve: The intake valves are made using SUH35 HEAT RESISTANT STEEL which is more commonly used to make exhaust valves. These are then coated with a special formula that further improves
the valves' resistance to heat, wear and corrosion.
Exhaust valve: In order to withstand temperatures of up to around 1000C, the exhaust valves are made using a nickel based heat resistant alloy, INCONEL 751.

We usually ship all orders within 1 day unless there is an issue with the order. In that case, we will contact you to find the best solution.