| 12-26-2022, 06:36 PM | #1 |
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Racechip vs JB4 on '22 M550i
Hi... does anyone have any comparisons between the RaceChip GTS and the JB4 on a 2022 M550i??
The JB4 connects the OBD port to provide additional info to the tuner, but does it really make that much difference?? I will be running 91 octane at 5000ft elevation most of the time. |
| 12-27-2022, 09:56 AM | #2 |
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Joint Chiefs of Staff
 
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Racechip pros:
-easier install Jb4 pros: - safety features to protect the engine if you overboost or run lean - limit boost by gear for better traction - limit boost RPM for a smoother power delivery - datalogging to see how the car handles boost or diagnose a problem - code reading and deleting
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| 12-31-2022, 07:17 PM | #3 |
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Drives: 21' BMW M550i
Join Date: Sep 2022
Location: Boston, USA
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I have a racechip and most of the time I run in Sport mode (within the RC app)
No issues here. When I do run Race mode I also have no issues. |
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| 01-02-2023, 02:28 PM | #4 | |
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Quote:
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