Ignitions and Electrical› Computers, Chips, Modules and Programmers

Burger Motorsports

JB4 Performance Tuner

$599.00

SKU: N20-N26-JB4-X1

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 JB4 is a plug and play performance tuner designed for turbocharged BMW vehicles with N20 and N26 engines. It enhances vehicle performance by manipulating sensor inputs and DME/ECU connections. The tuner is preloaded with custom software and offers multiple maps for different fuel types.

The JB4 provides significant power gains, up to 50hp to the wheels on stock vehicles and up to 100hp to the wheels on modified cars. It improves 0-60 and quarter-mile times while offering features such as gear-dependent boost control, E85 compatibility, built-in diagnostic code reading/deleting, and expanded engine safety systems. The device is not VIN-locked, making it removable and transferable to other vehicles.

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 NumberN20-N26-JB4-X1
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.

View Full Return Policy