[FSociety]

Originally Posted by 5soko

Congrats! The JB4 really gits the 535i really well, i love mine, map switching on the fly and the boost gauge in the dash at full throttle is awesome.

yup, You have the new latest JB4.

We should meet soon

[Techgeek80s]

Originally Posted by mzaiat

Hey guys,

It's my first post here but I've been scouring these forums ever since I bought my F10 535. I felt compelled to write this up so anyone out there with an F10 535 doesn't have the same issue. I recently bought and had installed the JB4 and a VRSF downpipe on my car. When I ordered the JB4 I opted out of ordering the usb cable because I wasn't going to do any dyno readings and it was listed as optional. Once my mechanic installed the tune and the pipe, we were unable to change the maps via the BC button, the mechanic checked all the connections again and again but still there was no sign of life from the JB4. Finally, after researching it more, he found out that in the F10, the tune comes preset to map 1 and in order to activate the BC button you need to hook up the USB cable and enable the option to change the maps. I was a little upset because there wasn't a single note of that on the ordering page and now I would have to wait a few more days to receive the cable plus the extra expense. I emailed BMS and luckily Ando got back to me within a few minutes and said I could pick up the cable in person at their warehouse so I went there the same day. The mechanic hooked it up and now all is good. For anyone who's getting the JB4 for their F10, the usb cable or the bluetooth connection is not optional, its mandatory!

I gotta say, the change in performance with the tune and the downpipe is awesome, it is significantly quicker and more responsive. I'm using map 5 since the highest octane grade we have here is 91. I was expecting a little more noise from the downpipe though, it is louder on cold start but when its warm at idle it sounds like stock. Next upgrade is an exhaust and charge pipe. Just gotta decide between Remus, Dinan or M performance.

Coming from a Mercedes E class, I'm thoroughly loving and enjoying my 535, especially now with these mods.

I want to do the jb4 stage 2 with downpipe too but your saying even if I go catted I can still fail emisiones? Im just afraid of blowing something and I really don’t want to deal with that I have intake and m5 exhaust don’t know how much better it’s going to sound but from what Iv heard performance and power is negligible

[FSociety]

Originally Posted by Techgeek80s

I want to do the jb4 stage 2 with downpipe too but your saying even if I go catted I can still fail emisiones? Im just afraid of blowing something and I really don’t want to deal with that I have intake and m5 exhaust don’t know how much better it’s going to sound but from what Iv heard performance and power is negligible

Five35

Few of my friends have 535 FBO no issues with emissions
EnzoTuned btw

[Techgeek80s]

Originally Posted by FSociety

Five35

Few of my friends have 535 FBO no issues with emissions
EnzoTuned btw

But have they had catted or careless with no issues

[Adam X3M40i]

Originally Posted by Techgeek80s

But have they had catted or careless with no issues

Catless dp Enzo ecu tune and running e85 no problem
-2013 535

[mzaiat]

Originally Posted by FSociety

Five35

Few of my friends have 535 FBO no issues with emissions
EnzoTuned btw

What do you mean by blow something? Like the smog check or something in your engine? If you're worried about the engine, I was too, I researched it a lot before I got them installed. People have been putting in jb4 and downpipes on their bimmers for years now and honestly I couldn't find any posts of someone having major car issues with them. Mostly it's tune not working etc. As far as the power, it's most definitely not negligible with the jb and the downpipe, it is significantly faster. If you meant with the exhaust and intake, from what I read, exhaust won't really give you any performance it's just for sound. And the intake won't do much by itself, but when coupled with the downpipe, tune etc, it has a greater effect on power.

[lsturbointeg]

since installing the JB4 have you swapped out your CP yet? any issues with the OEM one cracking?

[mzaiat]

Originally Posted by lsturbointeg

since installing the JB4 have you swapped out your CP yet? any issues with the OEM one cracking?

No, I haven't yet. I hope it won't crack since I'm running map 5 and its supposed to adjust boost based on engine automatically. Basically it won't give it to much boost risking anything, at least that's what it's supposed to do anyway. I do plan on changing my cp in the future though. Exhaust first.

[lsturbointeg]

Originally Posted by mzaiat

No, I haven't yet. I hope it won't crack since I'm running map 5 and its supposed to adjust boost based on engine automatically. Basically it won't give it to much boost risking anything, at least that's what it's supposed to do anyway. I do plan on changing my cp in the future though. Exhaust first.

got it! in regards to what was asked earlier about the power connection are you saying that you didn't have to do anything since everything was pretty much plug n play? are you able to toggle between maps or do you have to hook up your labtop each time?

[paul223]

Originally Posted by lsturbointeg

got it! in regards to what was asked earlier about the power connection are you saying that you didn't have to do anything since everything was pretty much plug n play? are you able to toggle between maps or do you have to hook up your labtop each time?

You must have OBDII connector hooked up to JB4 2 than you can use left stalk to change maps and other functions.

[lsturbointeg]

Originally Posted by paul223

You must have OBDII connector hooked up to JB4 2 than you can use left stalk to change maps and other functions.

thanks Paul223. just watched the video on using the stalk to change maps. is the OBDII a separate connector that needs to be purchased to work with the JB4? or is it an entirely different tune that needs to be purchased?

[AZ-MCRacer]

Originally Posted by lsturbointeg

thanks Paul223. just watched the video on using the stalk to change maps. is the OBDII a separate connector that needs to be purchased to work with the JB4? or is it an entirely different tune that needs to be purchased?

OBD cable is included with all the new JB4's.

[ssgm1x]

Originally Posted by mzaiat

Then I must have the updated version. The mechanic said there was no need to tap in for power. It gets its power from the tpms plug.

i am confused. you said on the newly revised JB4 there is no power or ground connectors? and that it gets power from the tpms sensor? Please verify this.........elaborate please

[5soko]

Originally Posted by ssgm1x

i am confused. you said on the newly revised JB4 there is no power or ground connectors? and that it gets power from the tpms sensor? Please verify this.........elaborate please

New jb4 boards that are shipping for most f10's have the power wire built into the harness now..
the ground wire is still present externally and will need to be attached to ground

[lsturbointeg]

Originally Posted by 5soko

New jb4 boards that are shipping for most f10's have the power wire built into the harness now..
the ground wire is still present externally and will need to be attached to ground

ah so no more red wire

[5soko]

Originally Posted by lsturbointeg

ah so no more red wire

Yes exactly

[Bradost]

what do you mean by JB4 Stage2? There is no such thing as a JB4 Stage2 or JB4 Stage1
there is JB4 and N55 Stage1 they are different tunes, this confirmed by BMS.

[jooobi3]

Have you got a CEL code yet? I got mine like a day after the installation of the catless dp lol.

[ssgm1x]

I too have a 2014 BMW 535i X drive PWG and Stock this car was slow....I recently went with a Newly Released OBD ECU FLASH Stage 1 and OMG what a difference!!!!! Now i know what all the HYPE is about. Totally different power than a Piggyback. I cannot believe how much this changes the car. Its Unreal....Smooth Power too!!! Feels like a BMW 550i now....LOL. Backend flash is next since i have been bitten by the Power Bug......

[ezaircon4jc]

Originally Posted by ssgm1x

I too have a 2014 BMW 535i X drive PWG and Stock this car was slow....I recently went with a Newly Released OBD ECU FLASH Stage 1 and OMG what a difference!!!!! Now i know what all the HYPE is about. Totally different power than a Piggyback. I cannot believe how much this changes the car. Its Unreal....Smooth Power too!!! Feels like a BMW 550i now....LOL. Backend flash is next since i have been bitten by the Power Bug......

You can really feel a half second 0-60???

[mzaiat]

Originally Posted by ezaircon4jc

You can really feel a half second 0-60???

When you say it like that, it doesn't seem like much of a power improvement but in real life the car is significantly faster with a significant improvement in acceleration. I mean major improvement over stock, the only downside to the jb4 is that it doesn't clear the CEL from the missing cat since I have a downpipe. From what I read older versions of jb had a autoclear built in but they removed that in the current version. So, every 250-300 Miles I have to connect to the jb via the usb cable and clear the cel. All that aside, that half a second literally feels like a few seconds.

[lsturbointeg]

just reading the info here and i'm still learning. the JB4 I got was the older version that doesn't have the OBD connection. Burgertuning said I could upgrade to the newer OBD harness. what I want to know for the time being from what was posted above that this unit is preset to map 1? is that a confirmation from Burgertuning? in my case it's a used unit so would you guys know since power has been disconnected does the unit default back to map 1? i'd like to hook this up without running a labtop to set things until later when I upgrade the harness to OBD. Any info would be appreciated!