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 > JB stage 1 to JB4
European Auto Source
Post Reply
 
Thread Tools Search this Thread
      10-09-2014, 03:11 PM   #1
aaron529
Private First Class
8
Rep
134
Posts

Drives: 135i coupe
Join Date: Feb 2010
Location: NY

iTrader: (0)

JB stage 1 to JB4

Hey guys,

I have an otherwise stock 2014 335i with the exception of a JB stage 1 tune which I truly enjoy without any issues.

I am considering upgrading to the JB4 for a $175 with the flexfuel wires.

My question is, is it even worth the 175$ since my car is basically stock with no exhaust etc?

I would like the option to use the flexfuel since it is easy accessible around me.

Also does any have the JB4 with the extended dash (Digital navigation instructions)? How do they like it with the JB4 and any issues?

Much appreciated
__________________
2009 135i coupe | 6MT | Montego | M sport | Nav| Split Second Turbo Tuner

2014 335i | 6MT | M Sport | M sport brakes | Nav | Harmon Kardon | 19in factory performance rims | JB4 | K40 radar detector and laser jammer
Appreciate 0
      10-09-2014, 07:54 PM   #2
WickedC5
Second Lieutenant
24
Rep
221
Posts

Drives: 2014 335i xDrive BSM/Coral Red
Join Date: Mar 2014
Location: Il

iTrader: (0)

If youre not going to get a DP at least, then I really dont see it being worth the upgrade. In order to fully utilize the JB4 Youd want a DP to be able to run higher maps/more boost.
Appreciate 0
      10-09-2014, 08:01 PM   #3
FC4
Colonel
1254
Rep
2,636
Posts

Drives: Yes
Join Date: May 2014
Location: US

iTrader: (0)

Quote:
Originally Posted by WickedC5 View Post
If youre not going to get a DP at least, then I really dont see it being worth the upgrade. In order to fully utilize the JB4 Youd want a DP to be able to run higher maps/more boost.
This.
Appreciate 0
      10-09-2014, 10:12 PM   #4
tdizzle
Colonel
United_States
98
Rep
2,004
Posts

Drives: 2017 F80 ZCP
Join Date: Aug 2012
Location: Memphis

iTrader: (0)

Quote:
Originally Posted by WickedC5 View Post
If youre not going to get a DP at least, then I really dont see it being worth the upgrade. In order to fully utilize the JB4 Youd want a DP to be able to run higher maps/more boost.
+1

I have the stage 2 on an otherwise stock car and it's not noticeable from the stage 1. Just more of an annoyance to remove when you take it in for service.

Feel free to do a quick search as this has been discussed a handful of times over the past year or two.
Appreciate 0
      10-09-2014, 11:11 PM   #5
FC4
Colonel
1254
Rep
2,636
Posts

Drives: Yes
Join Date: May 2014
Location: US

iTrader: (0)

Quote:
Originally Posted by tdizzle View Post
+1

I have the stage 2 on an otherwise stock car and it's not noticeable from the stage 1. Just more of an annoyance to remove when you take it in for service.
Why does everyone insist on removing mods before taking the car to the dealer? What is everyone so scared about? Boggles my mind...I've never encountered such a paranoid bunch.
Appreciate 0
      10-10-2014, 11:44 AM   #6
tdizzle
Colonel
United_States
98
Rep
2,004
Posts

Drives: 2017 F80 ZCP
Join Date: Aug 2012
Location: Memphis

iTrader: (0)

Quote:
Originally Posted by FC4 View Post
Why does everyone insist on removing mods before taking the car to the dealer? What is everyone so scared about? Boggles my mind...I've never encountered such a paranoid bunch.
Because car manufacturers dont like you to mess with their ECU parameters and if something failed and they know you did just that they'll probably void your warranty and blame it on your mod?

If it was an exhaust mod or wheels and your engine blew, no biggie. But if your engine has issues and they know you had a mod that raised the boost on your car among other things, they'd probably take that opportunity to say that it was the fault of your mod making the car operate out of manufacture specs. Not really all that surprising.

But if you're not worried about it then by all means leave it fully modded and rock on. To each their own. The odds of this actually causing an issue is very very low. Probably lower than your car just having an issue in general without a mod.
Appreciate 0
      10-11-2014, 12:54 AM   #7
r33_RGSport
BimmerPost Supporting Vendor
r33_RGSport's Avatar
United_States
1919
Rep
8,538
Posts


Drives: G30 540i / 997.1 C4S / i3 REx
Join Date: Oct 2009
Location: So. Cal

iTrader: (3)

If your car is stock, stick with the Stage1. Because you can maximize the JB4 Stage 2 with your condition.
__________________

Email: sales@rgsport.com === IG: RGSport_USA
Appreciate 0
      10-11-2014, 05:29 AM   #8
Krelle
Captain
Denmark
56
Rep
624
Posts

Drives: F30 335
Join Date: Jun 2013
Location: Denmark

iTrader: (0)

Quote:
Originally Posted by tdizzle View Post
Because car manufacturers dont like you to mess with their ECU parameters and if something failed and they know you did just that they'll probably void your warranty and blame it on your mod?

If it was an exhaust mod or wheels and your engine blew, no biggie. But if your engine has issues and they know you had a mod that raised the boost on your car among other things, they'd probably take that opportunity to say that it was the fault of your mod making the car operate out of manufacture specs. Not really all that surprising.

But if you're not worried about it then by all means leave it fully modded and rock on. To each their own. The odds of this actually causing an issue is very very low. Probably lower than your car just having an issue in general without a mod.
Even though I have extended warranty, (3 years), I don't dismantle my mods. -Why lie?! I asked the guy´s and fx the piggy tuning they'll just remove if there is a problem. If the DME burns due to the piggy,- you pay if they find it caused the mess. If not they'll cover it. They are reasonable guy's.
Recently I had my motor for the window hoist covered

Another thing is the noise/emmision tests.. In order to pass these you'll have to return to standard with mods like: "muffler delete" , "DP" or NOS
/Krelle
__________________
Ist der Motor kalt, Gib ihn sechs ein halb.....
Akrapovič , Bilstein B16 PSS10 , Wagner C. fmic+200 cell hfc, BBK, Quaife LSD, ER CP, DV+, Mod'ed BW turbo mkIII
Appreciate 0
      10-12-2014, 03:13 PM   #9
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
7579
Rep
93,636
Posts


Drives: 2007 e92 335i / 2013 F30 328
Join Date: Sep 2013
Location: Las Vegas

iTrader: (16)

Quote:
Originally Posted by FC4 View Post
Why does everyone insist on removing mods before taking the car to the dealer? What is everyone so scared about? Boggles my mind...I've never encountered such a paranoid bunch.
Agree with you... i actually never remove my mods but then each dealership is different.

As for OP the Jb4 stage 2 has more features (+ more safety too) and it also has smoother power delivery.
It won't necessarily give you more power with a stock car but it is supposed to be get you a better driving experience
Appreciate 0
      10-14-2014, 10:18 AM   #10
Dosturbos
Lieutenant
United_States
49
Rep
464
Posts

Drives: 2017 F48 X1 MSport
Join Date: Mar 2012
Location: Medford, MA

iTrader: (1)

The Dealership put my JB4 in, so I am never going through the hassle of removing it and reinstalling it. A lot of the BMW employee's also like to enjoy the hidden power of their cars too. Especially the guys who work in the service department. If you're nervous, ask your Service Advisor. Mine have always been straight with me about mods.
Appreciate 0
      10-16-2014, 12:13 PM   #11
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
2537
Rep
55,136
Posts


Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by Dosturbos View Post
The Dealership put my JB4 in, so I am never going through the hassle of removing it and reinstalling it. A lot of the BMW employee's also like to enjoy the hidden power of their cars too. Especially the guys who work in the service department. If you're nervous, ask your Service Advisor. Mine have always been straight with me about mods.
It truly depends on the dealer. My dealer used to ask me all the time to tune my cars, little did he know I used to remove it before I brought the car in for service as well as the other mods. I got my car at the cusp of when the 09 N54 vehicles were going through their growing transitions of fuel pump and injector failures so it wasn't worth the risk. Nowadays most of the failure have leveled off. If your dealer is comfortable take advantage of it.

Only problem I see is sometimes your favorite SA or mechanic jumps ship to another dealer and you are left praying the new SA or tech will warrant the repairs, that also happened to me.
__________________
|Like us on Facebook||Evolution Racewerks| |Active Autowerke| |ETS| |Burger Tuning| |PURE Turbos| |Mishimoto||VRSF| |AWE| |Wagner|

|HPB 240W Angel Eyes & LED Fog Light Kits | |CTS| |KW| |Spec| |ST Coilovers| |Koni| |Bilstein| |Borla| |Magnaflow| |AFE| |Fabspeed| |Injen| Aug Sale Up to 10% OFF!
Appreciate 0
Post Reply

Bookmarks

Tags
335i, jb4, n55, tune

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


All times are GMT -4. The time now is 05:27 AM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, 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