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FS: fully updated Jb4 for b58 $400
I'm selling my Jb4 that was on my '18 M240. This Jb4 is fully updated with the correct hex files, etc. Hassle free from trying to download the correct codes and having them load properly. This Jb4 also has the Bluetooth connect so it can load on your phone. Lastly this Jb4 also has a FSB water methanol injection control module already set up and ready to go( with a ground line and a power line). Free shipping to 48 states/ pickup northern NJ.
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