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BMW 3-Series (E90 E92) Forum
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Cobb/JB4/MHD
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05-19-2016, 08:10 AM | #1 |
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Cobb/JB4/MHD
Hi
I have a 2006 335i and keep hearing about these products. I'm sure everyone will have their own opinion, however what's the best of the bunch and are they all safe without any other modifications? Why would you pick this over a mapper...mapping the car? From what I understand the MHD is the easier one to use as you do it off a phone?!? I'm not fussed about ease, just a safe way to get more power. Thanks |
05-19-2016, 08:41 AM | #2 |
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I went with MHD , loving it and especially the level of communication from MHD and others on this forum , tons of support and looks like more to come in the future fom this platform. I am an Apple guy so had to buy and android device along with the cables and MHD application and maps so for me cost was about equal to a used Cobb as prices on Cobbs are dropping like presidential candidates.
All the best any way you go also heed the warnings about getting you car fully serviced prior to flashing. |
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05-19-2016, 09:01 AM | #3 |
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Cheers
Get it fully serviced before hand just to be safe right? Any android based deivise will be able to run this then right? Any idea what power gains you got and is it pretty simple for a fool like me to operate? |
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05-19-2016, 09:09 AM | #6 |
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Follow up with a "Which Oil should I Use?" thread as well...
This topic has been beaten to death, brought back to life, then beaten to death again more times than most people have replaced their HPFP. |
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05-19-2016, 09:16 AM | #8 |
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05-19-2016, 09:17 AM | #9 |
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Yes any tune will expose weaknesses, Why chase them down aFter you get fault codes post tune and get yourself nervous about what you did. Play it safe pluss your car should be kept up anyway so just do it. Plugs, coils and walnut blast at a minimum. I have not done any Dyno but I can assure you the seat of your pants Dyno will put a smile on your face.
android device must be On The Go compatable. Easy install instructions on forum. But the guy above me is just saying this is well covered in the 5000 pluss posts specific to MHD and the other thousands of posts on Cobb and JB. Gonna get a lot of heat here from the regulars when you ask questions that have been ansewerd multiple times already. Take the time to read the posts , they will answer all of your questions and inspire a few others. Keep the shiny side up. |
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05-19-2016, 09:39 AM | #11 |
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05-19-2016, 10:22 AM | #12 |
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From what I gather so far it's like this in my amateur opinion -
MHD - cheap, need android device, newest so not as reliable as cobb most likely, easy install COBB - reliable (COBB is a known respected brand for other parts too), easy install Jb4 - requires opening the ecu box to plug stuff in if you're comfortable with that Last edited by ssdara; 05-19-2016 at 01:58 PM.. |
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05-19-2016, 01:44 PM | #13 | |
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As mentioned OP, this topic has been discussed to death on here just use the search function
This thread will either be ignore or turn into a tuner war .. Both scenarios will not help you get any closer to your answer Quote:
You need to do more research about the Jb4 JB4 does not just trick the ECU to make more power, thats the JB+ Jb4 is a real tune that has access to a lot more .. It can also monitor timing and change AFR Just because it has a lot of features does not mean it is only meant for hardcore users ... You can install it and leave it on the default map and get all the power you need If you have more mods and want to get a more aggressive map, you can use your phone or tablet to change your map .. Just like MHD or Cobb
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05-19-2016, 01:59 PM | #14 |
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Here's probably the best breakdown of these and I bet it will help some of these guys in here.
COBB - for people who arent able to do a simple search MHD - for people who are able to do a simple search, but dont have time to read JB4 - for people who are able to do a simple search, but dont want to spend $50 on an android device. JB4 + MHD - for people who arent lazy. based on this, OP get a COBB |
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05-19-2016, 02:00 PM | #15 | |
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05-19-2016, 02:01 PM | #16 | |
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05-19-2016, 02:01 PM | #17 | |
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Quote:
https://www.google.com/search?q=jb4+...hrome&ie=UTF-8 1st link... |
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05-19-2016, 02:07 PM | #18 | |
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1)That was August 2015, it is May 2016, things could have changed in that time. 2)He didn't explain pros/cons between COBB and MHD I for one was looking forward to a good discussion between cobb and mhd in this thread as of May 2016. |
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05-19-2016, 02:07 PM | #19 | |
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JB4 is a piggyback. therefore it tricks the DME into doing things. JB4 alone, it does NOT control timing i believe the G5 can retard, but thats it.. it can log timing but it does not fully control timing. how does it retard timing? it manipulates a signal (tricks) How does it adjust fueling? by manipulating the HPFP sensor signal (TRICKING) to get the DME to see a different fuel mass thus adjust fuel. It works, but its not ideal and is still a piggyback. If it adjusted timing and everything else properly which is doesnt (typical of piggybacks, work but not ideal) there would not be a NEED for a BEF. Flash and Standalone tuning are the BEST most ideal way to calibrate a car. when thats not available the Piggyback will suffice. Been that way for years and nothing is different now. JB4 is fine, but lets not make it something its not because you have financial ties to it. |
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05-19-2016, 02:12 PM | #20 | ||
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05-19-2016, 02:14 PM | #21 | |
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You replied and said you are wrong the JB4 adjusts boost and also tricks the ECU to adjust fueling So basically you proved me right that JB4 does more than just trick the ECU to add boost blindly Whether it is the best tune or not is a different subject and will depend on the customer and what they are looking for Post of my post is to say Jb4 is not a stage 1 tune that adds boost blindly and just hope for the best. It is a complete tune that can monitor all the important variable and can adjust a few
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05-19-2016, 02:15 PM | #22 | |
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