BMW B58 M340i JB4 TUNE DIY INSTALL! FAST!

In this video, I’ll show you How To Install the Burger Motorsports BMW M340i B58 JB4!
Burger Motorsports JB4 as seen in this video 👉🏻 burgertuning.com/collections/...
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[@BMWFanatic]

Thanks guys for checking out the DIY! Burger Motorsports JB4 as seen in this video 👉🏻 burgertuning.com/collections/bmw-3-series-g20-g21/products/b58-jb4?rfsn=4126224.97e10a

[@FSAviators]

Very helpful, install took me about 10 mins, thank you!

[@scott8193]

everybody just makes a install video but nobody shows the settings and setting up maps and boost by gear. plz NO MORE INSTALL N DRIVE AROUND UR NEIGHBORHOOD VIDS!

[@BMWFanatic]

JB4 mobile app has been out for 8+ years still the same setup mostly, but I have the JB4 mobile app setup videos etc on my channel covering that, which is why I didn’t include it. I’ll be doing some more newer videos of JB4 set up & option changes here soon.

[@jacksampson7711]

You posted this vid 23 hours ago and already have a new M5??? Baller!!! I should be getting a M340i this year so your vids should come in handy.

[@BMWFanatic]

Older video that I didn’t get to upload yet hence the timing lol

[@CannaGro81]

Beautiful ride.

[@cracked302]

Lol, I JUST bought my JB4 like maybe 5 min ago. I thought to myself, “I know BMW Fanatic hasn’t done a video on it, but let me just double check if he’s got any info” and you post this just yesterday.

[@BMWFanatic]

Haha awesome!

[@dcowboys2285]

Hey, love the video is it necessary to buy the Bluetooth wireless adapter? And for the waste gauge wire isn’t necessary? Thanks in advance. Enjoy your M5 !

[@js002003]

Great vid! does leaving it plugged into the obd port drain the battery?

[@shinymike4301]

Where did you mention how you connect to the JB4 mobile app? Which part of the video is that, because I didn't see it.

[@electropalsceo]

When taking the car to the dealer for maintenance (when car is in warranty), do you have unplug all sensors or just unplug from the cable from the OBD port

[@jgutmen486]

Do you need hks plugs with the jb4 ?

[@EdwinFairchild]

After doing this what happens to the drive modes in the infotainment system, like comfort mode and eco and sport plus? All they all gone and you just get crazy power all the time ? Or can you still put it in comfort mode

[@BMWFanatic]

Everything is still there, none of that changes

[@jayl1498]

Question , how about the 2021 540i b58 335 hp, how much hp does it add with jb4 91 ?

[@kirillnuriev1073]

Do you have to unlock the ECU install the jb4 on the 2024(g22)

[@djcoolitoff]

Just got this delivered hope I can put it together

[@NortheastNomad]

Did it remove speed limiter?

[@djcoolitoff]

@@NortheastNomad not sure bro the fastest I hit was 140

[@yesitsme8943]

So this is the JB4 tune on your car with the AW downpipe you installed? Looking forward to hearing more about your experience driving it more in another video (X3 M40i owner)

[@BMWFanatic]

Yep, AA catted

[@senivan22]

There is a small hole on the firewall. So you run the obd2 connector in there. Small enough for the 4 pin square connector.

[@BMWFanatic]

Yep, gave two install options. This one as shown or do the firewall one

[@rcsky775]

Which is the better choice, the JB4 or the Race Chip? I wonder what are the pros and cons of each

[@BMWFanatic]

Long time JB4 user here since 2013 on my other BMWs, all positive in my experiences

[@7_Diego]

love the m340 just got myself a 2022 as well, instead of sending my ecu to get unlocked from femto can i just use a jb4? for custom burble tunes.

[@oafboy182]

JB4 won't give those burbbles

[@b58forever]

i remember when i had my 2007 300c srt8 i used the diablo sport to tune my car and it was cordless i hate all those cables in my car

[@JuniorGonzalez-xb4uc]

while cordless is great, connections can Fail. as where direct cable is more secure with a lesser chance of a glitch. and i hate to be in boost with a lost connection. The cables can be wire tied to the oem wires using color ties for easy detection and removal ( vs tracing the wires and pulling the wrong wires as dirt builds up and we lose track of what's what). just my opinion. trust me i rather have wireless but not for this.

[@tangrui1992]

That's a shiny engine bay

[@techwithA]

Hi i have a bmw e90 320d and i hear some engine noise in the cabin which i measured was less than 60db so just wanted to know is it something should i be concerned of?

[@techwithA]

Meausred 60db when idle

[@MotoJB]

I can assure you, the acceleration is not endless...

[@user-ie2ty8mn8m]

Great video. I understand this is a silly question but I’m new to all of this. Is this JB4 different than a “piggyback” option? Thanks

[@DomHitEmUp450]

Jb4 is a piggyback. Technically not a real tune

[@juansalazar9019]

are you selling the jb4 now since you no longer have the m340i? been wanting to get one for a while

[@BMWFanatic]

All parts were on the car when sold

[@Devondubya]

80 wheel? Or 80 crank?

[@melvinrojas419]

Do u have to unlock the ECU to install the jb4 on the 2022?

[@BMWFanatic]

Nope 👍🏻

[@kejinren3303]

any pops and bangs on your 2022 model after install jb4? I can barely hear pops and bangs on my 2022 model

[@BMWFanatic]

BMW turned off the burble tunes on these so you would need to get a flash tune to add the burble back on

[@TheLongLife]

How does one change or select the maps ? Can't seem to find that process anywhere. New M340i owner here 😎

[@BMWFanatic]

JB4 mobile app. Need to buy the JB4 connect kit when buying the JB4 (it’s in the drop down option on the website)

[@TheLongLife]

@@BMWFanatic thank you for replying!

[@TheLongLife]

Thanks again for the video, very helpful for install. Just installed on mine, and instantly made me nervous on WOT the AFR seem dangerously lean on all the maps. Did you experience this as well? AFR stuck in the 14:1 range when boosted I'm more familiar with what should be a 11.5:1 range. I have stock down pipe, Burger cold air intake with AWE exhaust currently running an E30 fuel mix. Can anyone shed some light on this, I'm afraid to burn this thing up.

[@TheLongLife]

Anyone experience lean with these tuners?! 14.1:1 seems too lean to me.

[@NortheastNomad]

Does it remove speed limiter?

[@DomHitEmUp450]

No u need to actually tune your ecu I believe. If u have 21 or older its a pain🤦🏽‍♂️

[@djcoolitoff]

Is this better than a flash tune?

[@desmorider747]

Umm, what about the wastegate wire?

[@DailyM340i]

Anything special you need to do for removal?

[@BMWFanatic]

Nope, nothing

[@JXiong-zo8ig]

Has this given you any issues with the car? I have a 2020 M340i and was thinking of getting the JB4?

[@oafboy182]

I've had my JB4 since I bought my car almost 2 years ago and haven't had any issues at all.

[@natforand6041]

thank for the video, does the JB$ can be install on a m340i 2021 ?

[@oafboy182]

I have a JB4 on my 2021 M340.

[@MrEliteLolz]

is it worth it? which map do you run?@@oafboy182

[@oafboy182]

​@@MrEliteLolz I like it. I run map 2 because I'm in Cali and we only have 91. Every once in a while I will add 3.7gal of e85 and run map 5. You can feel a really nice difference over map 2 with that.

[@MrEliteLolz]

Tyy for the feedback, i ordered mine last night. You think map 3 is safe if I'm stock on 93 octane? Also how noticeable is map 2 compared to stock (map0). And last question, what mods do you have? Thank youuu@@oafboy182

[@oafboy182]

​@@MrEliteLolzyou should be good on map 3 with 93 octane. But you can always go to their forum and upload some logging and someone from Burger will look at it and let you know if you are good. The forum has good info and there are posts on how to record a log and what to do. Map 2 isn't a huge difference for me over stock but map 3 should be nice and noticeable for you. When I add the e85 and use map 5 I can really feel that over map 2. My car is stock other than the JB4. Soon I will be adding a catted downpipe which should really open it up.

[@caliber454]

Will this void the factory warranty though?

[@JuniorGonzalez-xb4uc]

just remove it when taking the car to service, zero traces.

[@BMWFanatic]

I always removed mine before going in

[@OBrigham-HCP4]

Just wanted to confirm that I don not have to disconnect the battery. Just wait 20 minutes for the car to fall asleep?

[@b58forever]

can i remove speed limiter with this?

[@oafboy182]

No you can not. You have to flash the DME for that.

[@Fastlifeg80]

Do you need to unlock the ecu for this ??

[@moescolla]

Nope It’s a piggy back tune that gives a false reading that your running low on boost so that it increases

[@BMWFanatic]

Nope

[@jaysonhoukes1458]

E85!?!?! E95 is the standaard in the netherlands

[@FUCKHONDAandSRT]

You don’t disconnect your battery? Anyone know? I just got this

[@BMWFanatic]

No need to

[@fields1]

Really wish there was a better way to mount the JB4. It just loosely sitting there makes me nervous.

[@JuniorGonzalez-xb4uc]

you can find ways to tie it down with wire ties or double-sided tape that can withstand heat. just have to be creative with it

[@Mr.Lambert777]

Is the jb4 better than the dinan ?

[@Blk.g20]

Yes. But if you have a car under warranty and want to keep that warranty, you can buy the carbahn (dinan) tune and pay an extra $1,000 which matches your factory warranty in case anything happens. JB4 is a lot more customizable, carbahn is pretty bare bones in the customization aspect.

[@BMWFanatic]

100% JB4 all the way. Still running it on my 335i going on 9 years 👍🏻

[@Mr.Lambert777]

@@Blk.g20 thanks for this ! Yes I got got a 23 X3M40i was thinking about getting a dinan since “ I hear” bmw is in an alliance with them or some sort 🤷🏿‍♂️. But yea, would like to tune it a bit.

[@JampMan1982]

What year was this m340i?

[@BMWFanatic]

2022

[@Ish5454]

Installed mine and my CEL popped up . My car is all stock. Is that supposed to happen?

[@BMWFanatic]

It won’t if everything is connected good, etc. Did it come up right away? I would double check your connections, clear codes and then try it again.

[@Ish5454]

@@BMWFanatic it would come up after few miles of driving. I cleared the codes but after like a day of driving or few miles it pop again.

[@b58forever]

@@BMWFanatic you know if i can remove the dumb 130 mph speed limiter with jb4?

[@JuniorGonzalez-xb4uc]

did it ever correct itself ? the cel ?

[@NortheastNomad]

@@b58foreverdid it remove it

[@rmedina1886]

I thought you traded the M340i for another M?

[@BMWFanatic]

I did! Last M340i video that I was working on and wanted to get it out there before I picked up my ‘23 M5 Comp😊

[@rmedina1886]

@@BMWFanatic Nice. Thanks for posting these videos my man 👍

[@logical_lb3059]

Why don’t anyone show how to select the map after an install? That’s the most important part!

[@BMWFanatic]

Unfortunately my new M5 was arriving to the dealer and had to drop what I was doing during this install and head there asap. I do have other JB4 mobile app videos on switching maps etc, which is the exact same for any JB4 unit

[@logical_lb3059]

@@BMWFanatic ok ty

[@greenerdays999]

They wanna be faster than u

[@FakeM2xx]

that’s what i’m saying

[@zendy04]

It says up to 100hp which means in the regular 93 octane maps its not the full power, how much hp is it making on the map1-3. If I plan on staying with 93 octane would it be smarter to get just jb+ since its the same psi as map 2, would that mean jb+ makes the same power as jb4 for half the price?

[@BMWFanatic]

That will be with e85 mixes to get the max power. Really all depends on your mods for map 1-3, but still plenty of great gains running 93 octane. Speaking from experience,I ran a JB+ 9 years ago on my current 08 335i and while it was great, when I switched to the JB4 the car was that much better in overall power output as it’s more fine tuned. Plus, able to run the Bluetooth connect kit, map switches through the app and so on for the JB4.

[@zendy04]

@@BMWFanatic Yeah but map 2 on jb4 is adding 4 psi while max setting is 4.5 psi added for jb+. Would that mean same power for half the price or is there other factors that increase performance in the jb4. I plan on only running 93 so i dont want to waste $300 for no extra hp

[@robertdufek5723]

@@zendy04 map 1 is 3 psi over stock Map 2 is 4 psi over stock Map 3 is 6 psi over stock Map 4 has a target boost of 20 psi Map 5 has a target boost of 22 psi Map 4 & 5 are suggested to be ran with 30% E85. This is for jb4, personally I think it’s a better option for the money, you already have the car, why cheap out now…

[@Mr.Lambert777]

@@zendy04 yeah, I am running 93 on my x3M40i I was thinking about purchasing the jb4 but will it be worth it?

[@zendy04]

@@Mr.Lambert777 definitely worth it im just trying to figure out if its smarter to get jb+ instead of jb4 since its cheaper but if you plan on staying with just 93 the psi increase isnt much higher between the 2. But some say the jb4 is more fine tuned so its more than just “psi increase”

[@RoseBill423]

I know its a fantastic performance engine but God it looks horrible with the cover off lol! Its like a dozen plates of black Spaghetti was dumped on it lmao

[@BMWFanatic]

Funny you say that because I always thought that lol

[@RoseBill423]

@BMWFanatic well I'm Italian so always thinking of food anyway lmao! Great car man, too bad my 2022 Lexus IS350 F Sport looks great but has a hard time against 330i and 2.0T Accord haha 😄 my engine is bullet proof but needs a turbo and 8 to 10 Speed tranny to get with modern technology lol

[@NguyenFamandChavez]

not hating, but sloppy install. Should have just ran throw the firewall. Its easy

[@BMWFanatic]

Yeah I know it’s easy and have done that on my F10 M5 video, but wanted a quick install process for this video. Mentioned the two options in the video - so whichever one suits the installer at that time.

[@Tothefloor]

Dude! How do you NOT have a Dragy? Waste of a car channel.