K-TUNED INTAKE MANIFOLD HEAT SHIELD GASKET: K24A2 AND K20Z3. Make a little more power with K-Tuned Intake Manifold and Throttlebody Heatshield Gaskets. These intake and throttle body heat shield gaskets are manufactured with a high grade temperature insulating plastic. They are precision cut and designed to replace the listed oem gaskets.By insulating the intake and throttle body from the engine heat, it will decrease the intake air temperature, and increase horsepower! So I guess you want to know how they work? The cylinder head gets quite hot when your engine is running. The purpose of these gaskets is to break the transfer of heat between the cylinder head and the intake manifold and throttle body to create lower incoming air temps. As air heats up, it's density drops, reducing oxygen content, robbing you of power because your ecu has to compensate with less fuel. On average, you lose about 1% of density for every 5 degrees Fahrenheit of increased temp! Heat soak is a thing of the past when you get one of these installed on your motor. The item "K-TUNED Thermal Intake Manifold Gasket K20Z3 K24A2 Civic Si TSX K-Series Swap" is in sale since Monday, January 22, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Intake Manifold". The seller is "cp_trade_usa" and is located in Los Angeles, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.