BMS BMW B38 B46 B48 B58 JB+ 3‑Wire Plug‑and‑Play Tuner for M140i, M240i, 340i, 440i, 540i and more
Unlock instant power with the Burger Motorsports JB+ for BMW B38, B46, B48 and B58 engines. This is the 3‑wire version designed for vehicles using a 3‑wire TMAP sensor. Expect safe, repeatable and adjustable gains of around 25 to 40 wheel horsepower with no coding, no permanent changes and full retention of factory safety systems. Ideal for BMW M140i tuning, M240i tuning, 340i tuning, 440i tuning, 540i tuning, B48 tuning and B38 tuning.
- True plug and play tuning box. Install in minutes using factory connectors.
- User adjustable boost increase up to 4.5 psi over stock.
- Gains on typical setups:
- B58: up to +40 whp / +50 wtq
- B48: up to +30 whp / +40 wtq
- B38: up to +35 whp / +35 wtq
- DME continues to manage timing and fueling to keep OEM safeguards intact.
- Fuel economy unchanged during normal driving.
- Auto‑detects engine type on install. One unit suits multiple B48 and B58 F‑series applications.
If you want the easiest, best value horsepower per pound, the JB+ is a brilliant choice. While the JB4 offers full custom tuning, the JB+ is the quick, simple power upgrade you can feel from the driver’s seat straight away. We run JB+ on our own cars and our customers love the punchy midrange, stronger acceleration and OEM‑like drivability.
Is this the right JB+ for your BMW
This listing is for the 3‑wire version. It does not fit MINI, X1 or X2 models. Please check your factory TMAP sensor has 3 wires before ordering. If your car uses a 4‑wire sensor, you will need the alternative JB+ version for those applications.
Compatibility and fitment
Suitable for most BMW models with B38, B46, B48 and B58 engines using a 3‑wire sensor, including the following:
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/iX
• 2017+ F22/F23 B48 230i/iX
• 2017+ F22/F23 B48 225i/iX
• 2017+ F22/F23 B46 220i/iX
• 2015+ F45/F46 B38 216i AT/GT
• 2015+ F22/F23 B38 218i
• 2014+ F45/F46 B38 218i AT/GT
BMW 3 Series
• 2020+ G20 B58 M340i/M340iX
• 2020+ G20 B48 320i/320iX
• 2020+ G20 B48 330i/330iX
• 2016+ F30 B58 340i/340iX
• 2016+ F30 B48 330i/330iX/330e
• 2016+ F30 B48 325i/325iX
• 2016+ F30 B46 320i/320iX
• 2016+ F30 B46 318i/318iX
BMW 4 Series
• 2016+ F32/F33/F36 B58 440i/440iX
• 2016+ F32/F33/F36 B48 430i/430iX
• 2016+ F32/F33/F36 B48 425i/425iX
• 2016+ F32/F33/F36 B46 420i/420iX
• 2016+ F32/F33/F36 B38 418i
BMW 5 Series
• 2017+ G30 B58 540i/540iX
• 2017+ G30 B46/B48 530i/530iX/530e
BMW 6 Series
• 2017+ G32 B58 640i/640iX
BMW 7 Series
• 2016+ G11/G12 B58 740i/740iX
• 2016+ G11/G12 730i/730iX
BMW 8 Series
• 2020+ G15/G14 B58 840i/840iX
BMW X Series
• 2018+ G01 B58 X3 3.0i/M40i
• 2019+ G02 B58 X4 3.0i/M40i
• 2019+ G05 B58 X5 40i
• 2019+ G07 B58 X7 40i
BMW Z4
• 2019+ G29 B58 Z4 M40i
• 2019+ G29 B46/B48 Z4 30i and Z4 20i
Toyota
• 2020 GR Toyota Supra 3.0L 6‑cyl. (B58)
Important: Only fits vehicles with a 3‑wire sensor. Will work on most BMW B48 and B58 applications even if not listed above, excluding the X1 and X2. Unsure about fitment? Contact us and we will be delighted to double check for you.
Real world performance
- Noticeably stronger midrange and throttle response on B58 M140i, M240i, 340i, 440i, 540i.
- Meaningful power uplift on B48 20i and 30i models without compromising daily drivability.
- JB+ dyno proven. Example: 2016 BMW 340i on 91 octane, stock vs JB+ showing strong gains.
Installation
Quick install using factory connectors. No coding, no cutting, no permanent changes. Most customers complete the install in minutes.
How to install Burger Motorsports BMW B46 B48 B58 JB+ Quick Install Tuner
Professional fitting by Nforcd
Prefer a professional install? Book fitting with Nforcd in Warwickshire. Email Sales@nforcd.com for a quote and availability.
Compatibility check before dispatch
We will verify compatibility before we ship. Provide 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 your JB+ from Nforcd
- We have run the JB+ on our own development cars.
- Excellent customer feedback on power gains and drivability.
- Expert advice, fitment support and aftersales.
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