09-19-2019, 04:00 PM | #1 |
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Drives: 2020 M340i
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BMW M340i with JB+
A friend of mine installed my old JB+ module on his M340i Xdrive. I am amazed that the same module could be used in 3 different states of tube for the B58. We tried it on a F46 440i, an X3 M40i and in the M40i.
The power gains are noticeable and nowhere near as harsh as it was on the X3 M40i. For $200 you can't beat it.
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10-05-2019, 10:43 AM | #2 |
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10-12-2019, 12:03 AM | #3 | |
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Is there a noticeable power increase or even exhaust note? |
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10-22-2019, 03:34 AM | #4 |
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As long as you can locate the wires to attach it to and it fits it should work. It just fools the computer into thinking it is at a higher altitude. A flash tune that you can apply quickly via Bluetooth that is optimized for the car is still the best option or a full jb4 with Bluetooth so you can change maps quickly and easily without having to pop the hood.
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12-10-2019, 02:12 AM | #5 |
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12-10-2019, 04:37 AM | #6 |
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12-10-2019, 08:26 AM | #7 | |
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It seems that he did not use the launch control. Last edited by Alexey; 12-10-2019 at 08:36 AM.. |
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12-10-2019, 12:46 PM | #8 |
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ps-gotta love those x-drive launches Thanks for sharing |
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01-07-2020, 03:01 PM | #9 |
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So would JB+ be better value than a JB4 if you want a quick, relatively mild tune? (No downpipes, intercoolers ect ect, no tracking, no racing. Everyday driving with a enthusiasm and just go stock with a piggyback)
If so, this is one heck of a 200$ well spent. Would anyone who had a JB4 or thought about JB4 OR has a JB+ share their thoughts? |
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01-07-2020, 03:03 PM | #10 |
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