British tuner BBR has a new two-stage supercharger kit for the 2015 to 2019 Mazda Miata. They can push the output of the 2.0-liter engine to 250 horsepower (186 kilowatts), which is a huge improvement over the standard 155 hp (116 kW).
At the heart of these two stages is the installation of a Rotrex supercharger. The compact unit occupies a discrete space right in front of the engine under the hood.
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“Choosing a Rotrex supercharger allows for the easiest forced induction installation of a BBR to date, meaning that it is within the capabilities of most DIY mechanics and is easy for any professional,” said Neil Mckay of BBR.
The stage one kit pushes the Miata’s output to 225 hp (168 kW) and 200 pound-feet (271 Newton-meters), versus the stock 148 lb-ft (201 Nm). The added power allows the sports car to hit 60 miles per hour (96 kilometers per hour) in 5.3 seconds, which is a 2.0 second acceleration boost to that speed.
This kit includes a supercharger and all necessary mounting hardware. It is also equipped with an oil cooler and an intercooler. Updated ECU software maximizes the boost effect.
BBR charges £3,895 ($4,366 at current exchange rates) for parts only or £4,490 ($5,029) with an ECU upgrade.
Stage 2 kit adds more equipment. There’s a four-to-one stainless steel exhaust manifold leading to a 2.5-inch diameter center section with a sport catalytic converter. The pipe then goes to the rear damper, and gas exits a pair of polished ends. The Dyno BBR shows an upgraded engine producing 245 hp (183 kW) and 216 lb-ft (293 Nm).
As an option, buyers looking to spend time on the track can upgrade to a Forge Motorsport intercooler with a larger core to better maintain inlet temperatures. Engine output is expected to grow to 250 hp, and the Miata can hit 60 mph in 5.1 seconds.
Stage 2 kit is £5395 ($6,045) for hardware. Adding the software ECU brings the price to £5,990 ($6,709).
BBR says that it is currently working on a supercharger package for this generation of Miata with more power, 181-hp (135-kW) from the 2.0-liter engine.
The spy shots from September 2022 might be our first hint that Mazda is preparing some updates for the Miata.
