B46/B48/B58 BMS JB4 | B48 tuning

B46/B48/B58 BMS JB4


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Competition Race Vehicles Only.
How about up to 60hp to the wheels (80hp crank) on a completely stock car on pump gas for a B58 or up to 40hp to the wheels for a B48? The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on any other tune.


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