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      08-20-2013, 01:38 AM   #1
ezon00
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Smile N55 Jb4 Help...

Hey guys im new to bmw car. i just got my ETS charge pipe installed today. im planning get a jb4 stage 2 for my next mod. will it cause any problem with this mod? And im wondering are the used jb4 same as the new ones? and where can i find them? btw i have a 2011 135i n55
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      08-20-2013, 03:00 AM   #2
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All N55 jb4s have the new G5 board so a used one is the same a buying a new one. The only thing you have to check is if the board has been modified to run ISO.

The charge pipe is always good to have when you increase boost (which you will be doing if you go with a JB4).
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      09-02-2013, 03:43 PM   #3
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i have a 2012 bmw 135i with the n55 as well. I bought this car used. the guy bought it new and had it for three months then traded it for a porsche then I bought it from the porsche dealership in omaha called "Woodhouse" and he put a AFE intake and a exhaust on it, many of my friends think it has a tune because it keeps up dead even with a 07 jb4 335i coupe running on map 8. I cant see any sign of tune, I was wondering how do I tell if I have a tune or not? I'm really hoping it doesnt so I can get the JB4 stage 2 tune for it. any help would be great!!
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      09-02-2013, 06:19 PM   #4
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You can tell if it has a JB4 by pressing the volume down and channel down buttons at the same time. If it is JB4, it would bring up a menu. If it's a piggy back you could look at the ECU. If it's a flashed ECU, probably no way to tell besides putting it on a dyno and see how much power it makes.
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      09-03-2013, 01:10 AM   #5
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Quote:
Originally Posted by DakotaFeely
i have a 2012 bmw 135i with the n55 as well. I bought this car used. the guy bought it new and had it for three months then traded it for a porsche then I bought it from the porsche dealership in omaha called "Woodhouse" and he put a AFE intake and a exhaust on it, many of my friends think it has a tune because it keeps up dead even with a 07 jb4 335i coupe running on map 8. I cant see any sign of tune, I was wondering how do I tell if I have a tune or not? I'm really hoping it doesnt so I can get the JB4 stage 2 tune for it. any help would be great!!
The car keeps up to a jb4 335i on map 8? Lol you must have some big problems on the car! That's the Econ mode with no turbo(s) haha just kidding with you brotha. Just turn on the key press the left bottom volume and right bottom music changing!
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      09-03-2013, 09:09 PM   #6
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Quote:
Originally Posted by Jetblack135 View Post
The car keeps up to a jb4 335i on map 8? Lol you must have some big problems on the car! That's the Econ mode with no turbo(s) haha just kidding with you brotha. Just turn on the key press the left bottom volume and right bottom music changing!
I'm not fimilair with the jb4, but he had it on the highest map. so I figured it was map 8. my bad!
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      09-03-2013, 09:10 PM   #7
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Quote:
Originally Posted by DakotaFeely
Quote:
Originally Posted by Jetblack135 View Post
The car keeps up to a jb4 335i on map 8? Lol you must have some big problems on the car! That's the Econ mode with no turbo(s) haha just kidding with you brotha. Just turn on the key press the left bottom volume and right bottom music changing!
I'm not fimilair with the jb4, but he had it on the highest map. so I figured it was map 8. my bad!
Lol I'm just kidding dude..probably map 7 lol
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      09-06-2013, 07:02 AM   #8
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I've got a JB4 for a 2011 N55 for sale You should buy it fo sho!
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      09-06-2013, 07:17 AM   #9
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also for the n55 they make an "A" and "B" harness make sure to buy correct one- you can find the difference and buy new here http://www.burgertuning.com/N55_Stage2_Jb4.html
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      09-07-2013, 02:36 AM   #10
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Quote:
Originally Posted by That_1_Guy View Post
I've got a JB4 for a 2011 N55 for sale You should buy it fo sho!
sadly I believe my car has a flash ecu . I would buy it if mine wasnt already tuned!! I bought my 2012 used from a guy that had it three months then traded it and I believe he flashed the ecu. how much are you looking to get out of it?
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