Supertech has been around for a long time in the Valvetrain industry, and has race proven their product year after year, and backed it up with world records and first place trophies. We use Supertech in our top level engine builds for good reason. We suggest Supertech Valves and actually use them in some of our very own cars.
We apply more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine this experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and its is no wonder why Supertech has some of the best performance products on the market.
While this is more than most manufactures we don't stop there. We also do extensive testing working very closely with many of today's top engine builders in order to continuously improve our products. All of this is meant to insure Supertech's industry leading reputation for high flow rates, durability and uncompromising quality.
In Stock / Available
30mm (Standard), 35mm (Standard)
Shipping Weight (Dimensional)
Honda / Acura
Civic Si 02-05 EP3, Civic Si 06-11 FA5 (Sedan), Civic Si 06-11 FG2 (Coupe), RSX Base 02-06 DC5, RSX Type S 02-06 DC5, TSX 04-08 CL9
K20A2, K20A3, K20Z1, K20Z3, K24A2
5.48mm In / 5.45mm Ex
108.85mm In / 108.65mm Ex
Valve Head Size
Valve Head Diameter
Intake & Exhaust
Valve Stem Diameter
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