Ignitions and Electrical› Computers, Chips, Modules and Programmers

Burger

JB4 Tuner

$779.00

SKU: N63JB4

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

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.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

BrandBurger
Part NumberN63JB4
CategoryIgnitions and Electrical

Buy with Confidence

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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