Ignitions and Electrical› Computers, Chips, Modules and Programmers

Burger Motorsports

JB4 Performance Tuning System B58

$529.00

SKU: BMS-JB4-BMW-GEN1-GEN2-B58

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

Easy — 1–2 hours

Description

The Burger Motorsports BMS JB4 is a performance tuning system designed for GEN1 and GEN2 B58 engines. It offers significant power gains without requiring an ECU flash, making it a less invasive modification. The JB4 installs via a plug-and-play harness and provides features such as on-the-fly map switching, boost control, data logging, and fault code reading.

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 Motorsports
Part NumberBMS-JB4-BMW-GEN1-GEN2-B58
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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