Mazda MX-5 Miata Gets 247-HP Supercharger From British Tuner

Tuning / 8 Comments

The relatively small bump in power has a big effect on the roadster's performance capabilities.

If there's one thing we won't get from the Mazda MX-5 Miata direct from the manufacturer, it's a more powerful engine, although that is probably for the best. For those looking for a moderate increase in power, there is a multitude of grease monkeys who are more than happy to extract more potential from the inline-four engine under the hood. The latest of the batch is the globally renowned Miata specialist, BRR who has devised a bolt-on supercharger kit with two power output options.

BRR has been in the business of making Miatas faster since the 80s when the NA hit the global market with a bang. This kit in particular is not too different from the one it introduced for the NC generation earlier this year, but it is down on power in comparison.

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The Rotrex kit is available for the 2015 to 2019 ND model years fitted with the SkyActiv-G 2.0-liter four-cylinder engine. A kit for models produced thereafter is still being developed. As standard, this modest engine produces 181 horsepower and 151 lb-ft of torque, sent to the rear wheels via your choice of a six-speed manual or automatic transmission.

Via BRR's stage one kit, which also includes an EcuTek engine remap, the power output will increase to an impressive 222 hp and a little more than 200 lb-ft, available from 3,750 to 5,750 rpm. The result of this is an improved 0-60 mph time of 5.3 seconds. This is two seconds faster than the standard car's claimed time.

Although it is a small bump in power, because of the small roadster's curb mass, this increase massively alters its power-to-weight ratio. We do ponder just how effective this would be on the highly popular and no longer available Club trim.

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With the stage two kit, BRR concentrated on improving the supercharger's flow rather than the boost pressure. It achieved this by applying its TIG-welded stainless steel 2.5-inch high-flow exhaust system together with an optional Forge Motorsport intercooler upgrade for maintaining optimal engine temperatures. This increases the output to 247 hp and 220 lb-ft. Although this is a significant increase in power, the 0-60 mph time only decreases to 5.1 seconds.

Prices for the stage one kit, including fitment, start at approximately $5,415 and also includes a new intake restrictor, K&N Typhoon induction kit, new silicone hoses, and other components needed to help the engine run with a supercharger. The stage two kit, excluding the intercooler, will set you back by about $7,340. Both kits are covered by a 12-month warranty.

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