Ignitions and Electrical› Computers, Chips, Modules and Programmers

Burger Motorsports

JB4 Performance Tuner

$599.00

SKU: N20-N26-JB4-EW

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 JB4 Performance Tuner is a computer chip and module designed to enhance turbo performance. It connects between your car's sensors and its DME/ECU to manipulate performance. This tuner offers advanced control, real-time data logging, and multiple performance maps.
Show original supplier description
The Burger Motorsports JB4 Performance Tuner is a plug-and-play device designed to significantly enhance the performance of BMW N20 and N26 engines. By installing between the vehicle's sensors and the DME/ECU, the JB4 system manipulates engine performance parameters. It provides advanced control over turbocharging, real-time data logging capabilities, and the flexibility to switch between multiple performance maps. It does not require additional modifications or previous tuning stages to function effectively, making it a straightforward upgrade for enthusiasts seeking more power. The JB4 system also allows for firmware updates as new versions are released, ensuring your tuning module remains current. This specific JB4 EW (Electronic Wastegate) model is designed for N20 and N26 engine platforms. It is compatible with a range of BMW models including the 220i, 228i, 320i, 328i, 420i, 428i, and 528i. The tuner facilitates easy installation and offers user-adjustable boost control.

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 NumberN20-N26-JB4-EW
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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