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The Burger Motorsports JB Plus is a plug-in piggyback tuner for BMW and MINI models with B38, B46, B48, or B58 engines. It adds up to 4.5 psi of boost, yielding gains of up to 30 wheel horsepower and 40 lb-ft on the B48, and up to 40 whp and 50 lb-ft on the B58. Installation takes under a minute, and the factory ECU still manages timing and fueling. It suits owners who want a quick, reversible power bump without a flash tune. Compared to a full ECU tune, it offers less peak power but is far easier to install and remove, and it keeps a clear upgrade path to the JB4.
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In stockShips from Canada · duties may applyReturn policy
In stock
In stock
In stock
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Lowest price we've seen: $239.00 on Nov 13 at Burger Motorsports. Tracked across 8 stores since Nov 13.
Owners praise the JB Plus for its easy installation and noticeable power gain, with many noting improved throttle response. A few mention that the gains are modest compared to a full tune.
The JB Plus (JB+) is a plug-in tuner for BMW and MINI vehicles with B38, B46, B48 or B58 engines. It installs in under a minute. It detects the engine automatically when installed.
Boost is user-adjustable up to 4.5 psi over stock. On the B48, gains are up to 30 wheel horsepower and 40 wheel torque. On the B58, gains are up to 40 wheel horsepower and 50 wheel torque. Timing and fueling stay under the control of the DME, so all factory safety systems are preserved.
Fuel economy is unchanged during normal driving. It is made in the USA and carries a 5-year warranty.
