BMW B58 JB4 Tuner (Gen 1 & Gen 2) - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) • Hardware included

• Hardware included

Top Outer Diameter (OD): 9

high-efficiency air filter

The S&B design ensures that your fuel gauge remains operational

Everyone knows that high heat is the enemy of your automatic transmission

BMW B58 JB4 Tuner (Gen 1 & Gen 2) - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) • Hardware includedPower gains of up to 120whp and 120wtq. on a stock vehicle without the risks of flashing! The JB4 is the most advanced and feature rich tuning system available for BMW's B58 engines, offering significant power gains, seamless integration, and unparalleled ease of use. With its plug and play design and innovative features, the JB4 transforms your driving experience without requiring additional modifications. Unlike traditional ECU flash tuning, the JB4