B38/ B46/ B48/ B58 JB Plus Quick Install Tuner

Plug in up to 40 extra wheel horsepower in seconds!

Finally our popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remain managed seamlessly by the DME, preserving all factory safety systems.

While the JB4 is the ultimate tuning tool, the JB Plus (JB+) is a quick and simple way to add a few HP with minimal cost and minimal installation effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat.

Fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation, allowing the same unit to be used for any B48 B58 F series application!

For those who want to start with the JB Plus and upgrade to the higher power, more advanced JB4 tune, we offer a 100% trade-up credit. To qualify, simply purchase the JB4 system from our website directly, and then after receipt, mail back the JB Plus along with its purchase receipt from BMS or any authorized reseller, and we'll issue a $239.00 refund against your JB4 purchase. The offer is valid for up to one year after purchasing the JB Plus. Made in the USA. 5-Year Warranty.

B58_JB_PLUS is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications.

Vehicle Fitment

Note: If your BMW has a B38/B46/B48/B58 engine and you don't see your exact model on the list below, please email us.

BMW 1 Series
• 2020-Present F40 B48 128ti
• 2019-Present F40 B48 M135i
• 2019-2019 F40 B38 118i
• 2015-2019 F20/F21 B58 M140i
• 2016-2019 F20/F21 B48 120i, 125i
• 2015-2019 F20/F21 B38 116i, 118i

BMW 2 Series
• 2022-Present G42 B58 M240i including xDrive
• 2022-Present G42 B48 220i, 230i
• 2016-2021 F22 F23 B58 M240i including xDrive
• 2017-2021 F22 F23 B48 230i including xDrive
• 2017-2021 F22 F23 B48 225i including xDrive
• 2017-2021 F22 F23 B46 220i including xDrive
• 2015-2021 F22 F23 B38 218i
• 2015-2021 F45 F46 B38 216i Active tourer and GT
• 2014-2020 F45 F46 B38 218i, 220i Active tourer and GT
• 2019-Present F44 B48 M235i Gran Coupé including xDrive

BMW 3 Series
• 2020-Present G20 G21 B58 M340i including xDrive
• 2019-Present G20 G21 B46 B48 318i, 320i, 320Li, 320e, 330i, 330e, 320Li including xDrive
• 2016-2018 F30 B58 340i including xDrive
• 2016-2018 F30 B48 330i, 330e including xDrive
• 2016-2018 F30 B48 325i including xDrive
• 2016-2018 F30 B46 320i including xDrive
• 2016-2018 F30 B46 318i including xDrive

BMW 4 Series
• 2021-Present G22 G23 G26 B58 M440i including Gran Coupe and xDrive 
• 2021-Present G22 G23 G26 B48 420i, 430i including Gran Coupe and xDrive 
• 2016-2020 F32 F33 F36 B58 440i including Gran Coupe and xDrive 
• 2016-2020 F32 F33 F36 B48 430i including Gran Coupe and xDrive 
• 2016-2020 F32 F33 F36 B48 425i including xDrive 
• 2016-2020 F32 F33 F36 B46 420i including xDrive
• 2016-2020 F32 F33 F36 B38 418i

BMW 5 Series
• 2017-Present G30 B58 540i including xDrive
• 2017-Present G30 B46 B48 530i 530e including xDrive
• 2021-Present G30 545e

BMW 6 Series
• 2018-Present G32 G33 B48 B58 630i 640i including xDrive

BMW 7 Series
• 2016-2022 G11 G12 B58 740i including xDrive
• 2016-2022 G11 G12 730i including xDrive

BMW 8 Series
• 2020-Present G15 G14 G16 B58 840i including Gran Coupe and xDrive

BMW X Series
• 2016-Present B46 B48 X1
• 2018-Present B46 B48 X2
• 2018-Present G01 B48 B58 X3 2.0i, X3 3.0i, X3 M40i including xDrive
• 2019-Present G02 B48 B58 X4 2.0i, X4 3.0i, X4 M40i including xDrive
• 2019-2022 G05 B58 X5 40i including xDrive
• 2021-2022 G05 X5 45e including xDrive
• 2020-Present G06 B58 X6 40i xDrive
• 2019-2022 G07 B58 X7 40i including xDrive

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

MINI B38/B46/B48
• 2014-Present F57 MINI Cooper S 
• 2015-Present F57 MINI Cooper JCW GP 
• 2014-Present F55/F56 MINI Cooper S 
• 2015-Present F55/F56 MINI Cooper JCW 
• 2018-Present F55/F56 MINI Cooper One

• 2017-Present F60 MINI Countryman S including ALL4
• 2018-Present F60 MINI Countryman JCW ALL4

• 2016-Present F54 MINI Clubman S
• 2017-Present F54 MINI Clubman S ALL4
• 2017-Present F54 MINI Clubman JCW ALL4

If you don't see your B38/B46/B48/B58 powered vehicle or year listed here please email us. 

DYNO RESULTS

2016 BMW 340i, 91 octane
Stock vs. JB Plus

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need proof of purchase.

To start a return, you can contact us at palenonracing@gmail.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at palenonracing@gmail.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, Burger Motorsports does not allow returns, custom products (such as special orders or personalized items), JB4 Tuners and air filters can not be returned. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. Certain circumstances will require a restocking fee of up to 25% at the discretion of Palenon Performance. (Examples of these circumstances include but are not limited to multiple failed delivery attempts, modified or damaged products and packaging, etc.) If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Handling

If the item is shipping from us direct, you will receive a tracking number within 1 business day. Most orders fulfilled at our warehouse will ship the same business day if ordered by 12pm MST. If the item is being drop shipped from the manufacturer, we cannot guarantee a tracking number within 1 business day. If an item is being drop shipped, we cannot guarantee the 24 hour (1 business day) processing time. A purchase of expedited shipping at checkout means that once item is ready to ship, it will ship using the upgraded shipping method. Some manufacturers require 3-5 days to process orders. Purchasing expedited shipping may speed up the processing time of your order, but we cannot make any guarantees in relation to faster processing time on the manufacturer’s end.

Cancellations

If you used a credit/debit card or PayPal to place an order and decide to cancel or return your order for any reason, a 5% merchant fee will be passed along to you (8% for Shop Pay installments). Some manufacturers can take up to 7 business days to ship out orders. If an item is out of stock we will reach out to you within 48 hours to confirm you would like to proceed with a preorder. If the item is listed as custom-built/ built to order within the description, or if the ETA or average lead time is visible on the product page at the time of ordering and you are cancelling inside of that ETA/lead time you will be charged the merchant fee. If the cancellation is outside of the time frame the merchant fee will not be charged to you for canceling.