Description
Unleash hidden power in your turbocharged MINI with the Burger Tuning JB4 Tuner for B38/B46/B48 engines. Delivering up to 40WHP on a stock setup and even greater gains with bolt-ons, high-octane fuel, or E85 blends, the JB4 transforms your MINI’s performance while retaining stock-like drivability.
The JB4 installs in minutes using a plug-and-play harness, integrates directly with the vehicle’s CANbus OBDII system, and offers unmatched features like on-the-fly map switching, boost-by-gear, and progressive water/methanol control. Best of all, no ECU flash is required, making it fully reversible and compatible with locked ECUs.
Whether you drive a Cooper S, JCW, Countryman, or Clubman, the JB4 delivers a smoother, faster, and more responsive driving experience—exactly how your MINI should have come from the factory.
Key Features & Benefits
- Up to 40WHP on stock MINI B38/B46/B48 engines
- Works with bolt-ons, higher octane, E85 blends, and larger turbos for even higher gains
- Plug-and-play installation, no cutting or splicing
- 8 preloaded maps for various fuel types & modifications (E85 compatible)
- On-the-fly map switching from inside the cabin
- Boost-by-gear for improved traction in lower gears
- Read & delete fault codes from the JB4 app
- View and log up to 40 real-time engine parameters
- Optional in-dash gauge displays for boost
- Compatible with JB4 Mobile and JB4PRO wireless adapters
- Runs as smoothly as stock with unchanged fuel economy during normal driving
- Fully reversible, not VIN-locked, and resellable
- Rugged billet aluminum JB4 enclosure for durability
- Made in the USA with 5-year warranty
Vehicle Fitment
MINI B38/B46/B48 Engines
Cooper S / JCW / One
- 2014–2023 F57 MINI Cooper S
- 2015–2023 F57 MINI Cooper JCW GP
- 2014–2023 F55/F56 MINI Cooper S
- 2015–2023 F55/F56 MINI Cooper JCW
- 2018–2023 F55/F56 MINI Cooper One
Countryman
- 2017–2023 F60 MINI Countryman S (including ALL4)
- 2018–2023 F60 MINI Countryman JCW ALL4
Clubman
- 2016–2023 F54 MINI Clubman S
- 2017–2023 F54 MINI Clubman S ALL4
- 2017–2023 F54 MINI Clubman JCW ALL4
Wireless Connectivity Options
- JB4 Mobile by DMAC – Advanced gauge themes & logging (App $29, adapter sold separately)
- JB4PRO by Burger Motorsports – Fully integrated, weather-sealed adapter with free app & built-in log analysis
