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intercooler and vacuum connections
The JB4 installs and removes easily and includes many unique features not found in any other tune including user-adjustable 1st and 2nd gear boost limiting
-A must have on all F90 M5s
2017 – 2018 F80/F82 BMW M4 GTS
Is it supported by tuners
BMW Electronic exhaust valve harness G80 m3 lip intercooler and vacuum connectionsFor use with the F chassis valved exhaust, for cars that do not come standard with an exhaust valve. This kit comes with an exhaust valve module, and all wiring necessary to control your exhaust valve from within the vehicle. Example, If you ordered an F chassis exhaust for your F30 320i BMW which does not have an exhaust valve, you will use this kit to restore functionality and allow operation of the exhaust valve from within the vehicle.
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