Burger Motorsports JB+ 3‑Wire TMAP Plug‑and‑Play Piggyback Tuner for BMW B38 B46 B48 B58 Engines – M140i M240i 340i 440i 540i M340i 330i 320i, Z4 & GR Supra

Plug-in Power Module for BMW B38 B46 B48 B58 and Toyota GR Supra with 3‑pin TMAP

Instant, adjustable turbocharged performance without an ECU flash. The Burger Motorsports JB+ 3‑wire unit is a simple plug-in boost module for BMW modular petrol engines and the A90 GR Supra that delivers a real seat-of-the-pants uplift. Expect repeatable gains of around 25 to 40 wheel horsepower with the factory safety strategy intact, no coding and no permanent changes. It is the ideal remap alternative for drivers who want quick, safe power you can feel straight away.

• True plug-in tuning box using OEM connectors. Install in minutes under the bonnet.
• User adjustable boost increase up to +4.5 psi over stock.
• ECU retains control of timing and fuelling so factory safeguards remain active.
• No change to fuel economy during normal driving.
• Auto-detects engine type on install. One module suits multiple B48 and B58 F and G chassis applications that use a 3‑wire TMAP.
• Fully removable. Revert to standard quickly for servicing or diagnostics.

Real world results you can feel

• B58 applications: up to +40 whp and +50 wtq for punchier midrange and stronger acceleration.
• B48 applications: up to +30 whp and +40 wtq for lively 20i and 30i models.
• B38 applications: up to +35 whp and +35 wtq for a noticeable uplift in drivability.

We run the JB+ on our own cars and customer feedback has been excellent. Sharper throttle response, harder midrange pull and OEM-like smoothness make this one of the best value power upgrades per pound you can buy.

Is this the right unit for your car

This listing is for vehicles with a 3‑wire TMAP sensor only. Please visually check your sensor has 3 wires before ordering. If your car has a 4‑wire TMAP, you will need the alternative JB+ version. Not for MINI, X1 or X2.

Compatibility and fitment

Suitable for most BMW models with B38, B46, B48 and B58 engines using a 3‑pin TMAP harness, plus the Toyota GR Supra 3.0. Common fitments include:

BMW 1 Series
• 2015+ F20 F21 B58 M140i
• 2016+ F20 F21 B48 120i, 125i
• 2015+ F20 F21 B38 116i

BMW 2 Series
• 2017+ F22 F23 B58 M240i xDrive and RWD
• 2017+ F22 F23 B48 230i xDrive and RWD
• 2017+ F22 F23 B48 225i xDrive and RWD
• 2017+ F22 F23 B46 220i xDrive and RWD
• 2015+ F45 F46 B38 216i Active Tourer and Gran Tourer
• 2015+ F22 F23 B38 218i
• 2014+ F45 F46 B38 218i Active Tourer and Gran Tourer

BMW 3 Series
• 2020+ G20 B58 M340i xDrive and RWD
• 2020+ G20 B48 320i xDrive and RWD
• 2020+ G20 B48 330i xDrive and RWD
• 2016+ F30 B58 340i xDrive and RWD
• 2016+ F30 B48 330i xDrive and RWD, 330e
• 2016+ F30 B48 325i xDrive and RWD
• 2016+ F30 B46 320i xDrive and RWD
• 2016+ F30 B46 318i xDrive and RWD

BMW 4 Series
• 2016+ F32 F33 F36 B58 440i xDrive and RWD
• 2016+ F32 F33 F36 B48 430i xDrive and RWD
• 2016+ F32 F33 F36 B48 425i xDrive and RWD
• 2016+ F32 F33 F36 B46 420i xDrive and RWD
• 2016+ F32 F33 F36 B38 418i

BMW 5 Series
• 2017+ G30 B58 540i xDrive and RWD
• 2017+ G30 B46 B48 530i xDrive and RWD, 530e

BMW 6 Series
• 2017+ G32 B58 640i xDrive and RWD

BMW 7 Series
• 2016+ G11 G12 B58 740i xDrive and RWD
• 2016+ G11 G12 730i xDrive and RWD

BMW 8 Series
• 2020+ G15 G14 B58 840i xDrive and RWD

BMW X Series
• 2018+ G01 B58 X3 M40i and 3.0i
• 2019+ G02 B58 X4 M40i and 3.0i
• 2019+ G05 B58 X5 40i
• 2019+ G07 B58 X7 40i

BMW Z4
• 2019+ G29 B58 Z4 M40i
• 2019+ G29 B46 B48 Z4 30i and 20i

Toyota
• 2020 GR Supra 3.0 L straight-six B58

Important: Only for vehicles with a 3‑wire TMAP. Works on most BMW B48 and B58 cars even if not listed above, excluding X1 and X2. Not sure about your application? Contact us and we will happily check.

Installation

Quick DIY fitment using factory-style connectors. No coding, no cutting, no drilling. Most owners complete the install in minutes with basic tools.

How to install the B46 B48 B58 JB+ Quick Install Tuner

Professional fitting

Prefer us to install it for you? Book expert fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Compatibility check before dispatch

We will verify fitment before we ship. Add your UK registration number or the last 7 digits of your VIN at checkout and we will confirm the correct part.

Part number

F-B48B58-JBP

Notes

• Not legal for sale or use within California.
• This is the 3‑wire JB+ only. MINI, X1 and X2 require different fitment.

Why buy from MJ Modifications

• We have used the JB+ extensively on our own development cars.
• Outstanding customer feedback on power gains and drivability.
• Honest advice, fitment support and aftersales from enthusiasts.

Search terms

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