RX8 intakes come in several brands and we carry the two most popular choices. The AEM intake is an 'open' intake which provides high flow and horsepower gains but necessarily makes MUCH more sound. The Racing Beat REVi RX8 intake provides a very high flow filter in a replacement high flow RX8 airbox with optional ram air duct. By design, the Racing Beat REVi RX8 Intake is a little louder than stock but much quieter than the AEM RX8 intake. If you have questions about which of these RX8 intakes is right for you, please contact us.