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Ignitions and Electrical› Computers, Chips, Modules and Programmers

BMS

JB4 Performance Tuner

Name: JB4 Performance Tuner
Brand: BMS
SKU: JB4 V3

$916.65

SKU: JB4 V3

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Easy — 1–2 hours

Overview

The Burger Tuning JB4 is a plug-and-play performance tuner designed to remap boost, timing, and fueling for optimal performance and reduced turbo lag.

This tuner attaches to easy-to-access sensors in the engine bay and works with your factory ECU tuning. It includes several performance maps that can be changed via an optional JB4 Mobile adapter and smartphone app, with maps for different octanes, E85 mixtures, and a VALET/low boost mode. Installation is discrete and the unit can be quickly removed without a trace.

Show original supplier description

The Burger Tuning JB4 is a plug-and-play performance tuner engineered to optimize engine output by remapping boost, timing, and fueling. It seamlessly integrates with your vehicle's factory ECU, providing enhanced performance and reduced turbo lag without the risks or expenses associated with traditional flash tuning. This tuner attaches directly to existing sensors in the engine bay, offering a discrete installation that can be easily removed. The JB4 comes with multiple performance maps, including options for various octane levels (91, 93), ethanol blends (E85), and a low-boost VALET mode. These maps can be conveniently switched using the optional JB4 Mobile adapter and smartphone application, or a Windows laptop with the BMS data cable. Both connectivity options allow for advanced data logging, analysis, map changes, and firmware updates. Features include power gains of up to 140hp and 176tq to the wheels on stock vehicles, quick plug-and-play installation, and CANbus integration for advanced tuning capabilities. It is also ethanol (E85) compatible and capable of reading/deleting fault codes. The JB4 is not VIN-locked, allowing for easy removal and resale. It is proudly made in the USA and includes a 5-year warranty.

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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	BMS
Part Number	JB4 V3
Category	Ignitions 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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