Speedfactory Thermal Intake Gaskets - H/F Series Civic EF9 (v­tec) which results in additional cylinder

which results in additional cylinder pressure and more torque but without compromising valvetrain longevity

allowing them to tailor the power curve appropriately

Rails only - no other bracketry included

Alpha Series Headers also feature the smallest possible primary tubes required to achieve optimum overall and peak power

Speedfactory Thermal Intake Gaskets - H/F Series Civic EF9 (v­tec) which results in additional cylinderSpeedfactory Thermal Intake Gaskets H F Series SpeedFactory Racing Thermal Intake Manifold Gaskets are designed to be used as a direct OEM replacement for everything from street cars to full on drag racing applications. Our gaskets are reusable and significantly reduce the transfer of heat from the head to the intake manifold reducing intake air temps and thereby producing more power! After years of using other thermal gaskets, we were not satisfied