F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > JB4 Issues and Impressions (F30)?
Steve Thomas BMW
Post Reply
 
Thread Tools Search this Thread
      01-04-2013, 09:24 PM   #1
frost335
New Member
United_States
3
Rep
5
Posts

 
Drives: F30 335
Join Date: Dec 2012
Location: Earth

iTrader: (0)

Question JB4 Issues and Impressions (F30)?

Hey guys,
I know there are several threads discussing the JB4, and while I've seen many arguments about it, I haven't really seen any major complaints.

I'd really appreciate some feedback from F30/JB4 owners primarily, but anyone else that has experience with it on other models would be great to hear from as well. Also, it would be great to get some responses to a few questions I have:

- Are there really "ghost codes" and do you need the BT/CAN tool (or something else) to remove the codes prior to service once the hardware has been removed? I believe the F30 JB4 doesn't include any tools like the previous versions?

- Does it need to be removed for basic maintenance, oil change, software updates?

- If it is discovered, which part of your warranty could potentially be considered void?

- Does BMW Assist transmit any information to BMW if it notices the tune? I believe I read that was a concern.

- The numbers are impressive, but how much of a difference does it really make? I've had Dinan tunes on my E92 335 and E92 M3 and feel like they really woke up the cars.

Thanks in advance for your help!

Last edited by frost335; 01-04-2013 at 09:29 PM.
Appreciate 0
      01-04-2013, 09:58 PM   #2
Mike@N54Tuning.com
BimmerPost Supporting Vendor
Canada
479
Rep
15,032
Posts


 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

iTrader: (88)

There is no JB4 for the F30 yet. Only the N55 Stage1 tune. It does not leave codes behind but if you are worried they sell a complain tool called the "CAN Tool" that will delete hidden codes. Alternatively you can get the BT Tool which lets you read codes via laptop from all modules on the vehicle.

Gains are 40-50hp and well worth the 5 minute install time.

Mike
__________________
LOWEST PRICE GURANTEE ON ALL PRODUCTS - www.n54tuning.com - Email; Mike@n54tuning.com
NEW PERFORMANCE LINE N54 DOWNPIPES & M3/M4 & F30 ER DOWNPIPES NOW IN STOCK - ER N54 CHARPE PIPE SPECIALS - NEW JB4 G5 ISO for N54 and F30 N55 ON SALE - NEW S55 M3/M4 JB4 NOW SHIPPING
Appreciate 0
      01-04-2013, 10:27 PM   #3
frost335
New Member
United_States
3
Rep
5
Posts

 
Drives: F30 335
Join Date: Dec 2012
Location: Earth

iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
There is no JB4 for the F30 yet. Only the N55 Stage1 tune. It does not leave codes behind but if you are worried they sell a complain tool called the "CAN Tool" that will delete hidden codes. Alternatively you can get the BT Tool which lets you read codes via laptop from all modules on the vehicle.

Gains are 40-50hp and well worth the 5 minute install time.

Mike
Thanks for the info, Mike! If you purchase the Stage1 tune are you able to upgrade it to the JB4 or whatever the next version is? When do you expect to have an actual JB4 for the F30 and will it come with a CAN tool?
Appreciate 0
      01-05-2013, 08:56 PM   #4
Camnyc
stance whore
1
Rep
183
Posts

 
Drives: 2013 f30 335i
Join Date: Dec 2012
Location: nyc

iTrader: (0)

Following this as I would like additional info and would like to know if the stg1 will be upgradeable to stg2 when available.
Appreciate 0
      01-05-2013, 09:19 PM   #5
Mak135i
First Lieutenant
United_States
3
Rep
312
Posts

 
Drives: Z4 3.5is, 335i
Join Date: Apr 2010
Location: Baton Rouge, LA

iTrader: (2)

I had the JB4 in my 135i and it was always upgradeable (I went thru 3 upgrades) and always free.

I expect the same for this. If you go on their web site (and forums) you will get all the information there
__________________
Gone but not forgotten: 2008 BMW135i Vert
Gone but not forgotten: 2011 MB C63 AMG

Added: 335i, BSM/BLK, M-sport, Sp. Auto, Prem, Tech, HK, 19", lots of Plastidip, H&R Sport, 245/255 Ventus V12
Appreciate 0
      01-06-2013, 03:58 AM   #6
RollingLower42
Lieutenant
RollingLower42's Avatar
11
Rep
541
Posts

 
Drives: 2012 BMW 335I
Join Date: May 2012
Location: Los Angeles

iTrader: (0)

Garage List
I got Stage 1 and I love it. Definitely can feel a lot more power. For the price, it was totally worth it.
Appreciate 0
      01-06-2013, 01:46 PM   #7
fotios335i
Major General
fotios335i's Avatar
United_States
121
Rep
6,769
Posts

 
Drives: 12 BSM F30 sport/msport 335i
Join Date: Jan 2007
Location: cape cod MA

iTrader: (61)

Ive had it for a while and its been flawless. great power combined with amazing sound from the I6 turbo makes it a very fun car to drive. Stg 2 shoud be coming soon. The maker of JB products will have his own f30 soon. so I heard
__________________

2012 335i sport to full Msport, M adaptive and vss, sport 8 AT, fully loaded, Black saphire, black dakota leather, mperformance carbon interior with shifter, M performance grills, rear spoiler, front splitter, side sill extensions, MPPK, MPE exhaust, morr alloys vs8.2's with michelin pss, p3 gauge, msport wheel, etc, etc
Appreciate 0
      01-06-2013, 02:15 PM   #8
ljtM5comp
New Member
1
Rep
24
Posts

 
Drives: '14 Singapore grey M5
Join Date: Dec 2012
Location: South Carolina

iTrader: (0)

I have Stage 1 and have put about 3000 miles on it. I love it! Big horsepower and torque gains. No loss of mpg's. Turbo spool up is immediate and the turbo whistle is much more noticeable than stock. The only complaint I could make is that you can feel the turbo hit hard and then a second or 2 later you can feel the boost drop off. I love it though. I'm looking forward to stage 2 because this thing is already a beast! FYI, I have the 8-speed. If anyone is on the fence I'd say go for it!

John
Appreciate 0
      01-06-2013, 02:31 PM   #9
Mike@N54Tuning.com
BimmerPost Supporting Vendor
Canada
479
Rep
15,032
Posts


 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

iTrader: (88)

Quote:
Originally Posted by Camnyc View Post
Following this as I would like additional info and would like to know if the stg1 will be upgradeable to stg2 when available.
To do the Stage2 upgrade you must already own the Stage1. There is no set ETA or timeframe for the Stage2 upgrade.

Mike
__________________
LOWEST PRICE GURANTEE ON ALL PRODUCTS - www.n54tuning.com - Email; Mike@n54tuning.com
NEW PERFORMANCE LINE N54 DOWNPIPES & M3/M4 & F30 ER DOWNPIPES NOW IN STOCK - ER N54 CHARPE PIPE SPECIALS - NEW JB4 G5 ISO for N54 and F30 N55 ON SALE - NEW S55 M3/M4 JB4 NOW SHIPPING
Appreciate 0
      01-06-2013, 02:46 PM   #10
J-boogey
Major
J-boogey's Avatar
United_States
19
Rep
1,303
Posts

 
Drives: F30 335xi Msport
Join Date: Sep 2009
Location: Oceanside, New York

iTrader: (2)

literally just ordered stage 1 from you mike!
__________________
2013 F30 335i xdrive | Estoril Blue | Black Dakota Leather | Aluminum Hexagon trim | M-Sport | Cold weather | DHP | Premium package | Tech package | Harmon Kardon | PDC | Rearview Cam | IND Painted reflectors | BMW performance grills | JB4 stage 2 | ER downpipe | BMS Intake | H&R sport springs
Appreciate 0
      01-06-2013, 02:50 PM   #11
bosz
Captain
bosz's Avatar
24
Rep
708
Posts

 
Drives: F30 335i Ordered
Join Date: Dec 2011
Location: toronto

iTrader: (0)

your guys are tempting me to get stage 1! Im trying to wait for stage 2..bc i want to feel a sudden increase in power vs stage 1 to stage 2 will probably not be as noticeable as stock -> stage 2
__________________
**JB Stage 1** 2012 F30 335i/BSM/Coral Red Interior/Diamond Black Trim/Premium Pack/BMW Apps/Ext Blue Tooth/Sirius XM/Sport Auto W/Paddle Shifters/Sport Suspension/Meisterschaft Super GT Exhaust
Appreciate 0
      01-06-2013, 02:52 PM   #12
J-boogey
Major
J-boogey's Avatar
United_States
19
Rep
1,303
Posts

 
Drives: F30 335xi Msport
Join Date: Sep 2009
Location: Oceanside, New York

iTrader: (2)

I'm coming from a FBO n54 e92, so i needed to pull the trigger and get the tune, the car feels so damn slow.
__________________
2013 F30 335i xdrive | Estoril Blue | Black Dakota Leather | Aluminum Hexagon trim | M-Sport | Cold weather | DHP | Premium package | Tech package | Harmon Kardon | PDC | Rearview Cam | IND Painted reflectors | BMW performance grills | JB4 stage 2 | ER downpipe | BMS Intake | H&R sport springs
Appreciate 0
      01-07-2013, 02:17 PM   #13
martinf79
Captain
martinf79's Avatar
30
Rep
640
Posts

 
Drives: F30 335i M Sport
Join Date: May 2012
Location: Toronto, Canada

iTrader: (0)

Newbie to this. Was thinking of getting the PPK but w/ the delay, minor power boost (20hp) and anticipated cost, thinking this might be a better route to take.

What should I know before going this route? Engine failures, warranty issues (is it really untraceable), reliability, etc?

Would appreciate a view on this.

Also - what is involved in the install. The PDF isn't clear at all on the JB website. Really need to know exactly what needs to be plugged into what. I see like 9 connections on the harness, and yet it indicates that the F30 only needs 2 connections???
__________________

2013 335i ///M-Sport | MPPK ON ORDER | AW | BD Leather | 19 M3 ZCP Wheels | M-Sport Brakes | Adaptive M-Suspension | Variable Sport Steering | Premium Package | Enhanced Bluetooth | Sirius | BMW Apps | Heads Up Display | Speed Limit Info | M Performance Grill | Front/Rear Painted Reflectors | Coded
Appreciate 0
      01-07-2013, 03:40 PM   #14
tdizzle
Lieutenant Colonel
United_States
18
Rep
1,796
Posts

 
Drives: 2012 335i Sport
Join Date: Aug 2012
Location: Memphis

iTrader: (0)

Quote:
Originally Posted by martinf79 View Post
Newbie to this. Was thinking of getting the PPK but w/ the delay, minor power boost (20hp) and anticipated cost, thinking this might be a better route to take.

What should I know before going this route? Engine failures, warranty issues (is it really untraceable), reliability, etc?

Would appreciate a view on this.

Also - what is involved in the install. The PDF isn't clear at all on the JB website. Really need to know exactly what needs to be plugged into what. I see like 9 connections on the harness, and yet it indicates that the F30 only needs 2 connections???
I'm debating the same ideas as you... JB4 for approx double hp/tq and far cheaper, but the small potential for warranty issues.

As far as the install, everyone who has done it says it's really simple once you do it, but the instructions are a bit confusing. The 2011 used all 3 connections, but the F30 apparently doesn't use one of them. I'm not sure about the 9 connections, but you're basically plugging the jb4 connection into the car's connections then the cars back into the jb4 (kinda rerouting everything to the jb4 then back to the car). Hopefully that makes sense...

Someone who has actually done the install may be able to explain better. I'm told it's about a 15 mins job (or less if you've done it before), more if you want to do some fancy rerouting of cables into the car or something.
Appreciate 0
      01-12-2013, 08:07 AM   #15
spideypm
Private
1
Rep
70
Posts

 
Drives: 2013' 335i M Sport
Join Date: Oct 2012
Location: Taiwan

iTrader: (0)

Tried to install jb4 to my car today...... Found out the adaptor or the intake sensor only had 4 pins when the slot had 5 pins..... Is it because my unit was for e9x???
Appreciate 0
      01-12-2013, 12:54 PM   #16
RollingLower42
Lieutenant
RollingLower42's Avatar
11
Rep
541
Posts

 
Drives: 2012 BMW 335I
Join Date: May 2012
Location: Los Angeles

iTrader: (0)

Garage List
Quote:
Originally Posted by spideypm View Post
Tried to install jb4 to my car today...... Found out the adaptor or the intake sensor only had 4 pins when the slot had 5 pins..... Is it because my unit was for e9x???
Did you get the wrong harness? I think there was a "A" and "B" harness. If you have the F30, you need the B harness I believe..
Appreciate 0
      01-12-2013, 03:07 PM   #17
bananachipz
Captain
16
Rep
819
Posts

 
Drives: F30 Mineral Gray 335i
Join Date: Feb 2012
Location: Canada

iTrader: (0)

Quote:
Originally Posted by martinf79 View Post
Newbie to this. Was thinking of getting the PPK but w/ the delay, minor power boost (20hp) and anticipated cost, thinking this might be a better route to take.

What should I know before going this route? Engine failures, warranty issues (is it really untraceable), reliability, etc?

Would appreciate a view on this.

Also - what is involved in the install. The PDF isn't clear at all on the JB website. Really need to know exactly what needs to be plugged into what. I see like 9 connections on the harness, and yet it indicates that the F30 only needs 2 connections???
you need 3 connections.

the documentation is crap. it's literally a 5 min install. I'll take pics tomorrow and upload.
Appreciate 0
      01-12-2013, 03:07 PM   #18
bananachipz
Captain
16
Rep
819
Posts

 
Drives: F30 Mineral Gray 335i
Join Date: Feb 2012
Location: Canada

iTrader: (0)

btw.. the jb4 is not for the f30. It's the JB N55 which is basically the JB3
Appreciate 0
      01-12-2013, 06:53 PM   #19
spideypm
Private
1
Rep
70
Posts

 
Drives: 2013' 335i M Sport
Join Date: Oct 2012
Location: Taiwan

iTrader: (0)

Quote:
Originally Posted by RollingLower420 View Post
Did you get the wrong harness? I think there was a "A" and "B" harness. If you have the F30, you need the B harness I believe..
Hi, thanks for the reply. I'm pretty sure I have harness B.
Appreciate 0
      01-12-2013, 06:55 PM   #20
spideypm
Private
1
Rep
70
Posts

 
Drives: 2013' 335i M Sport
Join Date: Oct 2012
Location: Taiwan

iTrader: (0)

Quote:
Originally Posted by bananachipz View Post
you need 3 connections.

the documentation is crap. it's literally a 5 min install. I'll take pics tomorrow and upload.
That would be awesome! I also found a 20-sec video clip on YouTube which was just as confusing...
Appreciate 0
      01-12-2013, 10:00 PM   #21
TreDirtyFive
Captain
United_States
21
Rep
918
Posts

 
Drives: 335i Coupe
Join Date: Jun 2008
Location: Los Angeles, CA

iTrader: (8)

the Stg 1 on the F30 only uses 3 of the 4 connectors (or 2 if you do not choose to use the boost solenoid).
__________________
335 F30 MSport: N55.Tech.NAV.+
135 DCT:N55.Prem.Sports.NAV.IPod
X-335 E92: Prem.Sports.NAV.IPod
Audi A3: Sports.Tech.NAV.sways.DP.K2 Coils.Flash.etc
X-67 Baracuda Fastback: DragGears.Sway.etc.
Appreciate 0
      01-12-2013, 11:41 PM   #22
spideypm
Private
1
Rep
70
Posts

 
Drives: 2013' 335i M Sport
Join Date: Oct 2012
Location: Taiwan

iTrader: (0)

Quote:
Originally Posted by TreDirtyFive
the Stg 1 on the F30 only uses 3 of the 4 connectors (or 2 if you do not choose to use the boost solenoid).
Understood, it's the intake connection I had issue with. The connector looks to fit 4 pin but my intake has 5 pin... Am I looking at the wrong place?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 04:39 AM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST