07-27-2018, 08:58 PM | #1 |
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Can i get a custom tune on a jb4?
Im currently running map 2 on my jb4 with a catless turboback exhaust and while the power increase over stock is nice i would like to make a bit more hp. So my question is about if it's possible to get a custom tune using the jb4? Thanks for any help.
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07-27-2018, 11:59 PM | #2 |
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Have you tried map 5 yet? Map 6 is for a custom map, but its still limited vs a custom flash tune.
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07-28-2018, 09:33 AM | #3 |
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No guarantee that a custom tune will make more power. That all depend on your octane. Post a log in N54tech.com and get advise.
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07-28-2018, 08:50 PM | #4 |
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Thanks for the quick reply. Ok so map 6 is the map that would be used if i took it to a shop that does custom dyno tunes correct? Also what are some of the limitations between a custom dyno tune through the jb4 verses a flash tune? Sorry if these are basic questions but im new to modding BMW's as i come from the Subaru side. Thanks again.
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07-30-2018, 06:19 PM | #5 |
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you have a lot of reading to do....I'd head over to n54tech.com (covers n55 and much more as well). You will learn a lot. In the meantime try map 5 with a little ethanol and send it. Or consider BEF with MHD.
Also, you ideally should be using a DP with map 2 to realize the benefits and keep it safe. |
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08-02-2018, 06:50 PM | #6 |
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Yes you can get a custom map on the Jb4, and its usually free
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custom tune, f30 335i xdrive, jb4 |
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