JB4 Tuner for 2025+ Toyota 4Runner 2.4L Turbo (BETA) Alpina B5 (F10/F11) 2007 GMC Sierra 1500 Classic

2007 GMC Sierra 1500 Classic 4

Maximized Airflow Efficiency

0T Midpipes end with included reducers to connect to the OEM exhaust size of 2

Combine the efficient positioning of the intercooler with our ultra-dense fin packs with a fin-density of 20 fins per inch

JB4 Tuner for 2025+ Toyota 4Runner 2.4L Turbo (BETA) Alpina B5 (F10/F11) 2007 GMC Sierra 1500 ClassicThe 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 features not found with any other 4Runner tune.