BBR Mazda MX-5 Stage 1 Turbo review

Upgrade to 248bhp gives 2-litre version of likeable little roadster a welcome – and well judged – shot in the arm

Evo rating
  • Good value for a significant performance boost
  • Needs care in the wet

Two-hundred and fifty horsepower isn’t a lot in the modern autosphere, but it feels like plenty when directed through the rear tyres of a car as simple and slender as a Mazda MX-5. Particularly as Northamptonshire seems to be auditioning for the first leg of the Volvo Ocean Race and farm vehicles have left a thin sheen of various brown substances on the county’s B-roads.

The MX-5 in question is Brackley- based BBR GTi’s first turbocharged take on the fourth-generation model, following naturally aspirated packages for the 1.5- and 2-litre cars. The conversion is based on the larger-engined MX-5 and centres around a twin-scroll hybrid turbo, a bespoke exhaust manifold and a stainless-steel downpipe. Gases are cooled by a front-mounted aluminium intercooler, while other modifications include stainless-steel oil and water lines, custom silicone turbo pipes, a K&N high-flow induction kit and StarChip EcuTek software.

Subscribe to evo magazine

Experience the thrill of driving with evo magazine. Subscribe now and get your first 5 issues for £5 or buy the latest issue in all good newsagents!

BBR describes it as a ‘Stage 1 Turbo’ package, and the result is 248bhp at 7150rpm and 236lb ft from 3250rpm – increases of 90bhp and 89lb ft over Mazda’s claims for the standard car. BBR also quotes a 0-60mph time of 5.0sec (against 7.3sec to 62mph for the unmodified car) and a 155mph limited top speed (up from 133mph).

> Click here for our Mazda MX-5 review

Advertisement
Advertisement - Article continues below

As we’ve come to expect from BBR, everything looks like it was assembled in the factory at Hiroshima, with only a custom carbonfibre turbocharger heat shield hinting that something might be out of the ordinary under the bonnet. Externally BBR’s demonstrator also wears a Mazda body-styling kit, BBR-branded stripes and OZ Ultraleggera alloy wheels with Yokohama tyres, which collectively exude a level of menace not present in a showroom-fresh MX-5.

You’ll pay more for touches like these, but everything required to lift the MX-5 to the advertised output will set you back £5274 if you intend to fit it yourself, or £5994 if you want BBR to do it for you.

Cleverly, the car doesn’t feel transformed when you first thumb the starter button and fire up the boosted Skyactiv four-pot. Only the bassy note of this car’s BBR Supersport exhaust gives the game away, but the idle settles down to normal levels and prodding the standard clutch feels no different from doing so in any other MX-5.

> Click here to see evo's best sports cars of 2017

If you’re not familiar with the regular car, you probably won’t notice the first subtle difference, either. With intake and exhaust gases now taking a slightly longer, more convoluted path, throttle response isn’t quite as sharp as usual, so exploratory blips of the pedal take a little longer to elicit movements on the rev-counter.

Until you pass 3000rpm, that is. That’s the point at which BBR’s car diverges from the regular MX-5, gathering pace with increasing intensity and commotion towards the red line. The engine now offers its best between 3000 and 6000rpm, with the same linearity and driveability of the standard car garnished with an audible whoosh and considerably greater forward momentum.

Advertisement - Article continues below

Combined with a firmer suspension setup, that newfound output requires circumspection on wet, greasy roads. Mazda’s standard traction control just about copes in a straight line, but around corners you’ll spend plenty of time correcting amusing but rapid spikes of oversteer even before the stability control intervenes. You can turn it off, of course, but you’d best bring your car- control A-game if you do so.

> Click here for our Abarth 124 Spider review 

That’s not to besmirch BBR’s conversion, because it’s very well judged indeed. It’s a perfect option for a used Mk4 MX-5, though even added to a brand new one (priced from £21,595, meaning a total of £27,589) it looks pretty reasonable given you’ll have enough power to close the performance gap to almost any modern hot hatch, but in a smaller, lighter, more attractive, more involving and more entertainingly rear-driven package.

Advertisement

Recommended

Visit/mazda/mx-5
Mazda MX-5 convertible

Mazda MX-5 review

29 Mar 2019
Visit/mazda/mx-5/22117/mazda-mx-5-30th-anniversary-edition-revealed
Mazda MX-5 convertible

Mazda MX-5 30th Anniversary Edition revealed

5 Mar 2019
Visit/mazda/mx-5/16038/mazda-mx-5-ten-of-the-best-from-30-years-of-mazda-s-sports-car
Mazda MX-5 convertible

Best Mazda MX-5 special editions

11 Feb 2019
Advertisement

Most Popular

Visit/porsche/911/201958/porsche-911-gt3-vs-gt3-rs-vs-gt2-rs-track-battle
Porsche 911

Porsche 911 GT3 vs GT3 RS vs GT2 RS - track battle

Porsche’s GT3, GT3 RS and GT2 RS are the most hardcore of the 911 breed, but pitched head‑to‑head which will we crown champion?
15 Nov 2019
Visit/buying-advice/19675/used-car-deals-of-the-week
used cars

Best used cars for sale this week

We’ve delved into the classifieds and chosen our favourite cars for sale this week
15 Nov 2019
Visit/ferrari/201950/new-ferrari-roma-612bhp-198mph-gt-car-joins-the-range
Ferrari

New Ferrari Roma: 612bhp, 198mph GT car joins the range

Ferrari has expanded its GT car range with the V8 powered Ferrari Roma
14 Nov 2019
Visit/features/22907/hyundai-i30-fastback-n-versus-the-col-de-turini
Hyundai i30 N hatchback

Hyundai i30 Fastback N versus the Col de Turini

We take the Hyundai i30 Fastback N up the Col de Turini, a 31km stage of the Monte Carlo World Rally Championship
19 Jul 2019