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JB4 for 2025+ Toyota 4Runner 2.4L TurboPower gains of up to 75hp on a stock 4Runner! The JB4 PRO is the newest, most advanced and highly featured tuning system available for your 2025 Present Toyota 4Runner 2. 4L. Power gains are up to 60hp to the wheels (75hp crank) on a completely stock car on pump gas, gains with bolt on parts, higher octane, E85 mixtures are even higher. The JB4 features a simple plug and play installation harness for easy installation & removal and includes many

• 2016-2019 GLC300 GLC Class

0t Luxe / Sport / Red Sport

A: The injector can be controlled with the FSB via a JB4

Green: CAN+

E-series Flex Fuel Kits

The JB4 installs and removes easily and includes many unique features not found in any other tune

Optional: Our optional 5-layer silicon upgraded coupler replaces your thin factory accordion coupler and won't collapse under higher boost pressures

Adds horsepower and torque

• 91 octane fuel or better required for performance gains

0L I6 Hurricane twin turbo engine

Fits in perfectly in the factory air box

• Power gains of up to 80hp to the wheels on a stock vehicle