Air Intakes Explained - featuring the RB High Flow Kit!
Miata High Flow Air Intake - 1994-97 Miata
A classic MIata intake and a proven performance upgrade! 1000's sold!
In late 2021 we made the difficult decision to find an alternate casting source for the aluminum duct that is included in our kit. We've since transferred all tooling to a new casting shop and used this new opportunity to address issues to improve manufacturing efficiency and product appearance. After several weeks of upgrading, prototype testing and modifications this duct is now in the their production schedule with a delivery date of late February. More information on availability date will be posted once in-house machining is underway.
The Miata High Flow Air Inlet Kit for the 1994-97 Miata combines the advantages of a low restriction K&N air filter with a smoother air passage into the factory air meter assembly to improve throttle response and horsepower. Designed and engineered by Racing Beat, this attractive assembly, with its polished aluminum casting, positions the air filter cone away from the exhaust header to minimize the intake of heated air. This Miata intake has proven extremely popular over the years with Miata owners worldwide. Legal for use in SCCA Production and STR classes.
1994-2005 Version / 1990-93 Version
As reviewed decades ago by Miata Magazine, "Around 3500 rpm a new pull develops that increases with the RPM. Around 5,000 the power gain is easily noticed over the factory system. The Racing Beat intake will look good under any hood with its curvy aluminum elbow, but under its good looks is a performer."
Years ago Sport Compact Car Magazine reviewed this intake in the "The Great Intake Shootout" in the July 2000 issue and stated the following: "This intake was the puzzler of the test. Despite its higher intake temperatures, it remains the power king of the temperature-corrected dyno tests. Due to that fact, it's our favorite. Its hard to argue with the most power, the best sound and the best price in one intake. Plus it takes minutes to install and looks pretty cool." To review this article,
Our dyno tests have shown a 6 HP increase over the stock air filter assembly. This dyno test was conducted on a stock 1995 Miata (1.8 ltr.) upgraded with our High Flow Air Intake. To view a graph of the dyno test results, click here. (PDF)
Only minimal effort is required to complete the installation of this assembly and requires only the use of simple hand tools. Use of the K&N Filter Charger Kit is an inexpensive way to clean, protect and prolong the life of your air filter.
Cruise Control Note: This intake assembly comes supplied with mounting hardware to re-position the factory installed cruise control actuator.
Are you concerned about keeping your car emissions legal? Is your car required to pass a tailpipe emissions test? The Racing Beat High Flow Miata Intake Kit has received an emissions exemption from the California Air Resources Board (CARB) and is legal for street use. Visit this link for more information regarding Frequently Asked Questions About Emission Laws And Regulations.
Note: We are often asked if this air intake assembly is compatible with a specific aftermarket shock tower brace. For detailed information on the use of a shock tower brace on the Miata, visit our
Shock Tower Brace Technical Information page. With the vast number of aftermarket braces available on the market, we are not certain of the compatibility of these units with our air intake. We suggest you contact the part manufacturer, dealer, club members, newsgroups, and on-line forums to determine the compatibility of various aftermarket part combinations.
CARB Exemption Decal Notice: If you currently own a Racing Beat High Flow Intake Kit and require an exemption decal for tailpipe emissions testing, follow this link for more information: How to obtain a CARB Exemption Decal from Racing Beat.