Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

JB4 Replacement and Upgrade ChipsJB4 Replacement and Upgrade Chips The replaceable 2580 master chip controls the communications between the JB4 and your BMS data cable or JB4 Smart Phone Wireless Connect Kit as well as the model specific firmware. If you are unable to connect to the JB4 try replacing this first as often it's the culprit. Specify which firmware you need in the drop down so the chip works out of the box with your model. To install it just open the hood, lock the doors,

Benefits include better sound

allowing exhaust flapper control via the turn signal button or JB4PRO app

Maserati Ghibli Install Video

2021–2024 G22/G23/G26 B48 Gen2 420i

user-adjustable fuel control

BMW 3 Series:

For a full map listing

A strong magnetic hold never deteriorates or weakens

One drop of penetrating oil or motor oil in the top will keep the check valve operational

The JB4 is a plug and play tune available for turbocharged vehicles

• 2018+ NX 300

The intake tube is constructed of high-quality polyethylene and is designed to reduce airflow restriction