The BBR supercharged conversion is based upon the Rotrex C30-94 Centrifugal design with superior efficiency, silent operation and self contained oiling system, combined with it’s unique patented traction drive technology it offers the smoothest linear power delivery. The supercharger supplies airflow of up to 0.39kg/s reaching impeller speeds of up to 100,000RPM combining small size with exceptional performance & durability. The BBR Supercharger kit's true strength lies in exploiting the exceptional balance and poise the chassis has from the factory. Retaining the car's OEM smooth, linear power delivery characteristics, with no spikes in torque are in keeping with the MX5's character.
Using the proven and reliable Rotrex supercharger unit, BBR’s Stage 1 package has been designed to install without intrusive mechanical alterations onto the 1998cc SkyActiv-G engine and the under bonnet appearance remains OEM-like and discrete.

Despite the subtle visuals the BBR supercharger packages’ gains are significant – aside from the 290-300bhp peak power figure, the Stage Two upgrade offers a highly useable 200 lb.ft plus of torque between 3750 rpm and 5750 rpm, making it highly responsive and ideal for fast road use for the performance orientated driver.
This peak output of this package is limited for complete standard engine safety (due to standard internals). BBR Stage Two Supercharger hardware will support 360BHP with upgraded (forged) engine internals.
The Stage Two BBR MX-5 ND2 Supercharged conversion includes all of the parts listed in BBR Stage One conversion With the addition of :-
- BBR Fuel System
- Forge Motorsport Intercooler
- NGK Iridium Spark Plugs
- 300 BHP Intake Restrictor
- BBR 300 BHP ECU Calibration
June 2025 release - At this power level a full BBR 2.5" exhaust system with solid flywheel conversion and stage one clutch will be required.

Opting for the Rotrex supercharger delivers BBR’s most straightforward forced induction install to date, meaning that it is well within the capabilities of most DIY mechanics and easy for any professional.
The BBR Stage One supercharged conversion is available now for all 2.0-litre 2015-2019 MX-5 (ND) models at a cost of £6945* on a fully fitted 'drive-in, drive-out' basis from BBR. The DIY version, intended for export and competent mechanics, is also available as hardware only £5745*, including comprehensive instructions and technical support, or including BBR software with optional required programming cables starting at £6440*.
*All prices exclude VAT - Applicable to U.K. purchases only
Comprehensive Instructions
Please note that it will take up to 4 weeks to dispatch goods depending on workload.