Ignitions and Electrical› Computers, Chips, Modules and Programmers

Burger

JB4 Tuner

$779.00

SKU: N63JB4

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Burger Motorsports N63JB4 is a performance tuner designed for BMW vehicles equipped with the N63, N63R, or N63TU engines. This plug-and-play device installs between your car's sensors and its DME/ECU, allowing for manipulation of vehicle performance through its connections. It offers significant power and torque gains, up to 100hp and 140tq to the wheels on a stock vehicle.

The JB4 tuner features CANbus integration, full data logging capabilities, multiple performance maps, user-adjustable fuel control, and boost-by-gear settings. It also supports WMI and JB4 Mobile wireless compatibility, and is compatible with locked ECUs, requiring no ECU flash. The tuner is housed in a billet aluminum enclosure, is fully removable, and comes with a 5-year warranty.
Show original supplier description
The Burger JB4 Tuner is a performance tuning system designed for turbocharged BMW engines featuring the N63, N63R, and N63TU powerplants. It provides substantial power gains of up to 100hp and 140tq to the wheels on a stock vehicle, improving acceleration times and overall performance. This tuner utilizes CANbus integration, allowing for full data logging, multiple performance maps, user-adjustable fuel control, and boost-by-gear settings. It offers a reliable and fully reversible installation, requiring no ECU flash and remaining compatible with locked ECUs. The JB4 Tuner also includes JB4PRO adapter and free app control for wireless connection to iOS or Android devices, enabling data analysis, map changes, and firmware updates. Key features include support for E85 ethanol blends, the ability to read and delete fault codes, display and log up to 40 engine parameters, and control exhaust flap operation. The system requires 91 octane or better for optimal performance gains and comes with a 5-year warranty. It is not VIN-locked and can be easily removed.

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
Part NumberN63JB4
CategoryIgnitions and Electrical

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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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