Burger Motorsports

JB4 Performance Tuner for B58

$529.00

SKU: JB4_B58

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Burger Motorsports JB4 is the most advanced plug-and-play tuning system available for BMW B58 turbocharged engines. It is designed to deliver substantial power gains, with reports of up to 120 horsepower and 120 lb-ft of torque at the wheels on a stock B58 engine using pump gas. For vehicles with bolt-on upgrades, higher octane fuel, or E85 mixtures, even greater gains are achievable. This tuner features a simple plug-and-play wiring harness, enabling quick installation and removal while providing advanced capabilities. These include on-the-fly map switching, boost-by-gear control for better traction, progressive water/methanol integration, built-in data logging, and fault code reading/clearing. Unlike traditional ECU flash tuning, the JB4 does not require staged upgrades or permanent modifications, offering immediate improvements in turbo response, power delivery, and acceleration. Both Gen1 and Gen2 B58 versions include the JB4PRO adapter and free app for wireless connection to iOS or Android devices via Bluetooth 4.0. This allows for recording and analyzing vehicle data, changing performance maps, and updating firmware. The JB4_B58 is CARB approved under Executive Order D-744-4 for many 2016-2018 BMW applications. However, it is noted that the product is "Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board."

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Available on iOS & Android

Specifications

BrandBurger Motorsports
Part NumberJB4_B58
CategoryIgnitions and Electrical
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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