JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback mercedes-benz-glc-43-amg-2024--esr8528756 • Adds up to 17+
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JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback mercedes-benz-glc-43-amg-2024--esr8528756 • Adds up to 17+Power gains of up to 50hp to the wheels on a stock vehicle The JB4 is the most advanced and highly featured tuning system for your Subaru 2. 4L 4 cylinder turbo. Power gains are up to 50hp to the wheels (70hp crank) on a completely stock car on pump gas, and gains with ethanol mixtures and bolt on parts are even higher. Now includes the JB4PRO adapter and free app built in! The JB4 features a simple plug & play installation harness for easy
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