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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 > I need input on people using JB4 and a COBB



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      01-06-2013, 02:10 PM   #1
München
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I was given as a present for Christmas a JB4 and a CPE intercooler, I am pondering on selling the JB4 for a COBB Access Port.

I will be most likely running the piggy back or the COBB Flash with the intercooler and eventually a DCI and leave the car alone. So should I just keep the JB4 or get the COBB, I know their is a price difference for a reason...better R&D maybe.

I am seeking an unbiased opinion on performance gains on the COBB vs the JB4. I have had my fair share of force induction
cars and just do not want the car to be buggy. (problematic) in the sense of after installing either.

thanks in advance.
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      01-06-2013, 02:11 PM   #2
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Search.

Bye.
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      01-06-2013, 02:13 PM   #3
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Search.

Bye.
search what? which one to buy?
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      01-06-2013, 02:55 PM   #4
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Quote:
Originally Posted by muchen
Quote:
Originally Posted by Rotorocious
Search.

Bye.
search what? which one to buy?
With a simple search you would have found this topic posted over 50 times. People cant say which one is better or wtv without starting a tuner war. Just search and make up your own opinion.
Ps: you wont be disappointed with either one.
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      01-06-2013, 03:53 PM   #5
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I went with COBB. I felt more comfortable heavily modding my car with a flash based tune that would alter fueling tables & cam timing. I also liked the simplicity of data logging & fault code reading with the COBB AccessPORT. I haven't been disappointed with the performance & love the results (160 WHP/170 WTQ gains over Stock Tune).

http://www.e90post.com/forums/showthread.php?t=778331
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      01-06-2013, 03:56 PM   #6
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Quote:
Originally Posted by benzy89
I went with COBB. I felt more comfortable heavily modding my car with a flash based tune that would alter fueling tables & cam timing. I also liked the simplicity of data logging & fault code reading with the COBB AccessPORT. I haven't been disappointed with the performance & love the results (160 WHP/170 WTQ gains over Stock Tune).

http://www.e90post.com/forums/showthread.php?t=778331
Dang, someone with something helpful to say, it's nice
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      01-06-2013, 04:43 PM   #7
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The OP already got hit with the bomb, so there wasn't any point on continuing down that road

It's also important that we all step back & acknowledge the fact that without flashing the DME, you cannot maximize the N54s power potential. COBB/GIAC have always been flash-based, but the JB4/PROcede have both recently released flash support for their piggyback tunes.

OP -- If you have any additional questions, write them in here or write on my user wall (I can't PM)
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      01-06-2013, 11:51 PM   #8
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i have ran both and i have to say if you go with cobb you wont regret it . atr is there if you later want a pro tune. the ease of install/uninstall .dont get me wrong jb is great i realy miss the switch on the fly and gauge sweep and terrys cs is fantastic . you cant go wrong either way i would just lean twords cobb if you have the means.
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      01-07-2013, 12:17 AM   #9
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Got a jb4 as a gift, at least try it.. Buy a Cobb stack em up .. Report back.
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      01-07-2013, 12:49 AM   #10
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stacking JB4 + Cobb, especially if you have a 6AT is critical for proper operation. I was someone in the "flash is better" camp, but I'm running JB4 ISO + Cobb right now.
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      01-07-2013, 02:05 AM   #11
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Quote:
Originally Posted by muchen View Post
search what? which one to buy?
I use both lol!! Jb4 for boost control, Cobb to deliver the BMS flash....guess I actually don't use both....Cobb is the delivery system lol!!
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      01-07-2013, 02:06 AM   #12
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Quote:
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stacking JB4 + Cobb, especially if you have a 6AT is critical for proper operation. I was someone in the "flash is better" camp, but I'm running JB4 ISO + Cobb right now.
are running Cobb or the BMS flash, just curious?
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      01-07-2013, 02:40 AM   #13
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Quote:
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stacking JB4 + Cobb, especially if you have a 6AT is critical for proper operation. I was someone in the "flash is better" camp, but I'm running JB4 ISO + Cobb right now.
Care to elaborate why the Cobb on top of the JB4 is better for thr 6AT's? Im just curious.

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      01-07-2013, 02:54 AM   #14
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You already have a proven tune, I would not take a hit, sell a gift and get something that is not necessarily better. Just different with similar reliability and performance.
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      01-07-2013, 03:12 AM   #15
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Choice is obvious, sell the JB4, buy the big turbo kit. durrr
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      01-07-2013, 03:15 AM   #16
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Choice is obvious, sell the JB4, buy the big turbo kit. durrr
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      01-07-2013, 11:09 AM   #17
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Thank you for you guys for you input. I like the feature of the COBB where it is a real flash and done throught the OBD port.
not like spool of spaghetti wires like the JB4 and at least my Autologic will still be able to communicate for CIP reports.

If your in northern VA and need service, I can provide better price and service than the dealer with complimentary loaner car and we offer a 3 year / 36000 mile warranty on parts and labor and use only genuine BMW parts.
http://advantagecertified.com/


Thanks again for the input, looks like I will be selling the JB4. have a great week
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      01-07-2013, 02:45 PM   #18
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Quote:
Originally Posted by muchen View Post
Thank you for you guys for you input. I like the feature of the COBB where it is a real flash and done throught the OBD port.
not like spool of spaghetti wires like the JB4 and at least my Autologic will still be able to communicate for CIP reports.

If your in northern VA and need service, I can provide better price and service than the dealer with complimentary loaner car and we offer a 3 year / 36000 mile warranty on parts and labor and use only genuine BMW parts.
http://advantagecertified.com/


Thanks again for the input, looks like I will be selling the JB4. have a great week
So decided to go with the big turbo kit after all huh?

By the way, I like spaghetti
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