Great Intake (Mazda RX8)
Only con was terrible instructions for the RX8 installation. There were several missing steps and some of the steps that were included were in the wrong order. This installation was difficult compared to most intake installs(at least on the RX8) Produced noticeable power gain, and the engine sound is great. At idol its quieter than the stock intake, but in high range RPM it's much louder.