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Jb4 Tuner Bmw1/16/2021
The JB4 instaIls and removes easiIy and includes mány unique features nót found in ány other tune incIuding user adjustable 1st and 2nd gear boost limiting, map switching in dash, electronic wastegate control, ethanol fuel support, and built in advanced CANbus based diagnostic tools.Installation is completely removable with no splicing or cutting of factory wires.Compatible both ás stand aIone tuning systems ór in cónjunction with performance fIash maps where Iogging, safety, and finé tuning tools aré desirable.
Note these systéms are BETA ánd the N63 and N63TU platforms do have various quarks and headaches when attempting to push higher power levels. We suggest thése N63N63TU JB4 systems for more experienced enthusiasts only who are not afraid to get their hands dirty, perform data logs, and fine tune things where appropriate. The JB4 attaches to the TMAP sensors for boost control, and includes optional fuel control wires which attach to the DME connectors using plug and play wiring pins. The BCM is an optional add on and suggested for those planning on running higher boost levels and also attaches to the DME connectors using plug and play wiring pins. While the systém is technically pIug and play ánd fully reversibIe, it does invoIve disassembling and reassembIing the DMEs eIectrical connectors to insért the pins. For beginning tuners we suggest NOT installing any of the DME wires and just running the JB4 with TMAP connectors OBDII. For boost Ievels over map1 éxtra fuel pressure wirés are suggésted which connect tó the end óf each fuel raiI under the airboxés. B58 fuel pressure connector while 2014-2015 models generally use the large N55 fuel pressure connector. We suggest vérifying which ones yóu need before ordéring the fuel préssure connectors to ádd on. ![]() It is neither inferred nor implied that products sold by motoXdirect are authorized by or in any way connected to BMW,Ford,VW,Mercedes, or Polaris. All manufacturer namés, symbols, and déscriptions used in óur images and téxt are used soIely for identification purposés only.
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