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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > what is JB4?? where i can get it??



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      05-13-2011, 01:51 PM   #1
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what is JB4?? where i can get it??

nearday i saw lots of the post is about the JB4. and it say it can gain like 100 hp and torque force. could i ask what is that?? is it need to flash my ECU or just plug in some machine?? and where i can get it?? i am in california LA.

btw, what is DCI??

thx so much
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      05-13-2011, 02:14 PM   #2
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nearday i saw lots of the post is about the JB4. and it say it can gain like 100 hp and torque force. could i ask what is that?? is it need to flash my ECU or just plug in some machine?? and where i can get it?? i am in california LA.

btw, what is DCI??

thx so much
JB4 is a piggyback solution. It requires digging into your ECU and plugging in some pins. Easy 20-30 min install. There are a lot of different tuning options at different price points, using different methods, so I would search and do your own research. In the end, they all make more power. Choosing the right one for you comes down to price point vs. safety as well as convenience and available options.
I'm sure people will start chiming in.

DCI is a dual cone intake. It is only necessary when running higher boost. Otherwise, your gains are minimal.. however, you do get a more pronounced turbo spool.
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      05-13-2011, 02:17 PM   #3
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Pm me I'll get it for you no problem.
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      05-13-2011, 02:19 PM   #4
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Seriously?

How about reading one of the multiple stickies at the top of the page? It's even easier than typing in JB4 in the search.

http://www.e90post.com/forums/showthread.php?t=374508
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      05-13-2011, 02:21 PM   #5
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Search ya lazy bastard
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      05-13-2011, 02:23 PM   #6
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Pm me I'll get it for you no problem.
PM this guy right here^^^^!!!!! You wont deal with anyone better than Jeff!
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      05-13-2011, 02:29 PM   #7
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Quote:
Originally Posted by Enjoiyourlife View Post
JB4 is a piggyback solution. It requires digging into your ECU and plugging in some pins. Easy 20-30 min install. There are a lot of different tuning options at different price points, using different methods, so I would search and do your own research. In the end, they all make more power. Choosing the right one for you comes down to price point vs. safety as well as convenience and available options.
I'm sure people will start chiming in.

DCI is a dual cone intake. It is only necessary when running higher boost. Otherwise, your gains are minimal.. however, you do get a more pronounced turbo spool.
so if i get the jb4, and one day i wanna cancel it, how can i do i just pull out the jb4 or i need to back to dealer to do it?

what situation i need to put the DCI? i get the bmw 335i, and i am going to put the JB4 and injen intake. and should i put the DCi?

thx so much
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      05-13-2011, 02:35 PM   #8
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Quote:
Originally Posted by a10033208 View Post
so if i get the jb4, and one day i wanna cancel it, how can i do i just pull out the jb4 or i need to back to dealer to do it?

what situation i need to put the DCI? i get the bmw 335i, and i am going to put the JB4 and injen intake. and should i put the DCi?

thx so much
LOL
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      05-13-2011, 02:37 PM   #9
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Quote:
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so if i get the jb4, and one day i wanna cancel it, how can i do i just pull out the jb4 or i need to back to dealer to do it?
Yes and have them install it too, they love seeing cars that are tuned (especially when they are under warranty).

Seriously man, before you go messing with your engine and warranty, do some of your OWN research instead of asking others. Vendors are very helpful but they are here to sell you a product. For the love of god, just read the stickies at the top of the page, read/watch a few install guides, learn about tuning, and have fun.
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      05-13-2011, 02:39 PM   #10
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Quote:
Originally Posted by a10033208 View Post
so if i get the jb4, and one day i wanna cancel it, how can i do i just pull out the jb4 or i need to back to dealer to do it?

what situation i need to put the DCI? i get the bmw 335i, and i am going to put the JB4 and injen intake. and should i put the DCi?

thx so much
if you want to get rid of the JB4, have some one take it out for you. And then you can sell it. NEVER take your car to the dealership with the JB4 installed on your car. You may run across warranty issues if you do.

A DCI is an intake. The Injen intake is an iteration of the DCI. You will be fine with either one. The BMS DCI seems to be most popular because you get similar performance for a much cheaper price. However, Injen looks better in the engine bay.
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      05-13-2011, 02:46 PM   #11
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i wonder if anyone saw he has a 328i
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      05-13-2011, 02:49 PM   #12
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It says you have a 328i. Just double checking that it is a 335i you have...

Jeff@Topgearsolutions is gonna be able to not only get you a good deal on your tune but also help you pick which one is best for you. Definitely contact him
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      05-13-2011, 02:50 PM   #13
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i wonder if anyone saw he has a 328i
His threads are full of win today Just like the other one asking if his car will blow up if he does the exhaust flap mod. It's keeping me entertained to say the least.
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      05-13-2011, 02:50 PM   #14
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Quote:
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i wonder if anyone saw he has a 328i
my bad. i put the wrong one
i will post the pic when i done my mod
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      05-13-2011, 02:55 PM   #15
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You put the wrong one?

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      05-13-2011, 02:56 PM   #16
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Quote:
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i wonder if anyone saw he has a 328i
Yeah I noticed that too and was just about to post but you beat me to it.

To the OP:

If you have a 328 the JB4 will not work but BMS does have something for the 328. If you are going to get a 335 then you have to tell us what year because the JB4 will only work with the N54 engine while the JB3 will work with the N55.

I live in LA too so if you want some help just PM me.
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      05-13-2011, 03:00 PM   #17
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the 328i BMS powerbox adds like 7-8 whp Still a better value than dropping $1k on an exhaust for that car for sure!
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      05-13-2011, 03:04 PM   #18
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the 328i BMS powerbox adds like 7-8 whp Still a better value than dropping $1k on an exhaust for that car for sure!
Yeah I know not much of a gain but if he has a 328 it's not like he has a lot of options but like you said still definitely better than dropping $1K.

I think he corrected it though and said he has a 335.

OP we need to know what year your 335 is so that we can help
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      05-13-2011, 03:06 PM   #19
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Yeah I know not much of a gain but if he has a 328 it's not like he has a lot of options but like you said still definitely better than dropping $1K.

I think he corrected it though and said he has a 335.

OP we need to know what year your 335 is so that we can help
i just email to u
check for it

thx
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      05-13-2011, 03:14 PM   #20
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Come on, he put the wrong car in his profile?

OP, do not tune your car, you will loose your warranty! If you want to tune go Dinan. I can already see the future threads this guy will post if he gets a piggy!
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      05-13-2011, 03:16 PM   #21
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Best prices and best support if you don't know much about tunes.
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      05-13-2011, 03:19 PM   #22
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he sounds like he is an 8 yr old immigrant
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