Air and Fuel Filters

Racing Beat Air Duct RX8, 09-11 Ram Air REVI

Racing Beat offers our Ram Air Duct for use with the Racing Beat REVi Intake Kit for use on the 2009-11 RX-8. The inlet of this duct is positioned in the mouth opening of the Mazda RX-8 to allow cooler ambient air to be force-fed directly into the REVi intake tract, converting your intake into a true “cold-air” intake system!

Designed by Racing Beat, this high-density polyethylene intake duct mounts under the nose of your RX-8 and directs air into the inlet of the REVi Intake Kit. This duct can also be used with the stock intake box or aftermarket intake kits to direct cooler air into the engine compartment.

The installation of this duct requires the removal of the nose from the RX-8 and can easily be undertaken by 1-2 people in about an hour. Fully detailed instructions, with numerous photos included, will guide you through the installation process. Although this process might sound rather challenging, the process is relatively straightforward and can be undertaken using only simple hand-tools.

Racing Beat Revi Air Intake System RX8 04-11 

Working with the design team at AFE Power, a high capacity air filter was developed that allowed Racing Beat to position a tuned-length intake horn inside the filter body. This filter design allowed them to fine-tune the length of the air horn to maximize the performance potential. They have noted that many aftermarket intake systems for the RX-8 incorporate a large air filter, which is then connected to the intake manifold with a length of plastic or metal tubing. In many cases, the size of the filter that has been selected will dictate the length of tubing required, severely limiting the critical tuning importance of the air intake tube!

The REVi intake system addresses one of the most common complaints that we hear regarding aftermarket intakes for the RX-8 – extremely loud intake noise! Although a simple unshielded “tube-and-filter” intake system may produce respectable top end power, the noise levels that are produced are unbearably loud. During initial testing with one of the more popular aftermarket RX-8 intake kits, RB recorded a full-throttle sound level reading of over 90 db inside the car, with the windows rolled up! Compared to the stock sound level, they believe that you will soon tire of this type of “rocket-racer” intake buzz. The RX-8 REVi intake produces a much more modest intake sound with only a 2-3 db increase over the stock system. As described on by one of the prototype test volunteers, “The REVi intake is definitely louder than the factory unit, but not unreasonably so. It actually sounds deep and pretty darn good.”

Notes: The original MAF sensor is retained for use with this intake, a replacement is not supplied with this kit.

Racing Beat Production Notes: As of January 1, 2010, due to inconsistencies in the blue anodizing processes previously utilized, the aluminum mass air flow sensor tube is now provided with a clear (silver) anodizing surface treatment. As of 4/2014, the hose clamps provided with the kit are K&N-supplied worm-style clamps. Actual components in this kit may vary from the photos shown.

Air Filter, 86-95