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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 06-23-2016, 01:01 PM
SayItAintTom SayItAintTom is offline
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Was just about to jb4 it then..

..i found someone who does flash tunes for much cheaper. He has plenty of experience in remapping the ecu for more power for cheaper than a jb4 costs. He says i could get the jb4 but he says there's no point if i wont be running meth.

I have no intention of going that far yet, i daily this 335, not that i doubt the engine can handle it because im sure it can, i just want a small boost in power for now.

Is any of what this guy is saying reliable or true? Or should i just get the jb4. He owns a 335 himself and has been working on them 5+ years.

Bs? Or no?
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  #2  
Old 06-23-2016, 01:47 PM
fdriller9 fdriller9 is offline
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What are you plans with the car? Flash it and that's it?

If you plan on modding the car, I recommend the JB4 so you can change maps as you mod.

When you're full bolt on, do an MHD/backend flash and stack the JB4 with it. Then you have the benefits of a flash tune and all the features of the JB4.

If you flash it now, you will need to get it retuned after adding mods.
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Last edited by fdriller9; 06-23-2016 at 01:49 PM.
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  #3  
Old 06-23-2016, 02:28 PM
SayItAintTom SayItAintTom is offline
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Quote:
Originally Posted by fdriller9 View Post
What are you plans with the car? Flash it and that's it?

If you plan on modding the car, I recommend the JB4 so you can change maps as you mod.

When you're full bolt on, do an MHD/backend flash and stack the JB4 with it. Then you have the benefits of a flash tune and all the features of the JB4.

If you flash it now, you will need to get it retuned after adding mods.
Thanks for responding. May i ask the exact features of a jb4? I know you can change maps and open & close your exhaust valves, what else?
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  #4  
Old 06-23-2016, 02:31 PM
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335iAaron 335iAaron is offline
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The jb4 lets you access the fuel gauge to make it a boost gauge. It does plenty of things. Let's you read cel and service engine lights via the jb4. It also had many maps to suit the mods you put on the car. I recommend just using the jb4 because it is easy to install, and does plenty for the car
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  #5  
Old 06-23-2016, 02:36 PM
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CALWATERBOY DUE CALWATERBOY DUE is offline
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Mein Auto: 09 E93 335i somewhat mod
Quote:
Originally Posted by SayItAintTom View Post
..i found someone who does flash tunes for much cheaper. He has plenty of experience in remapping the ecu for more power for cheaper than a jb4 costs. He says i could get the jb4 but he says there's no point if i wont be running meth.

I have no intention of going that far yet, i daily this 335, not that i doubt the engine can handle it because im sure it can, i just want a small boost in power for now.

Is any of what this guy is saying reliable or true? Or should i just get the jb4. He owns a 335 himself and has been working on them 5+ years.

Bs? Or no?

N54 = No BS

PROGRAM - MHS I think - an Android app anyone can apply at swimmingly low price!

I'm killin' time on Interstate 5 - can post detail on available tunes later.
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  #6  
Old 06-23-2016, 02:40 PM
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CALWATERBOY DUE CALWATERBOY DUE is offline
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Ol' fdriller9 has the right info - explore the possibilities at N54TECH
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  #7  
Old 06-23-2016, 02:45 PM
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08 335Ci 08 335Ci is offline
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I think the key words here are "has been working on them 5+ years." He wants you to keep coming back. Ask him if he'll guarantee he won't brick your ECU and your car will pass any present or future emission requirements.

When you flash a tune, you can't turn it off or change it. You can't take it out and sell it or move it to another car. And if the guy decides to move, you gotta do the trip.

I'll stick with the JB4.
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  #8  
Old 06-23-2016, 08:04 PM
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CALWATERBOY DUE CALWATERBOY DUE is offline
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OK [here] is a quick comparison, popular tunes. JB4 METH slays all.....gotta wonder how it'd work stacked on MHD.....
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  #9  
Old 06-24-2016, 02:22 PM
SayItAintTom SayItAintTom is offline
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Wow so much info.. thanks guys. Problems though. This morning while doing 140kph on the highway omw to work, when i accelerated to pass someone, the car stuttered.. like i felt it on the pedal. It stuttered like twice then it goes. It did this every time i tried to accelerate at higher speeds.

I did some quick research and gathered that im getting misfires? Could be coils, spark plugs? Or even vanos? Anyone here have any insight.

Id rather deal with this first before i go ahead with this tune.
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  #10  
Old 06-24-2016, 04:26 PM
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335iAaron 335iAaron is offline
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Deffinitely check the plugs first then go from there... Plugs, coils, injectors, vanos
Read the code the car is throwing first so you have a pinpoint approach
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  #11  
Old 06-24-2016, 04:39 PM
SayItAintTom SayItAintTom is offline
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Quote:
Originally Posted by 335iAaron View Post
Deffinitely check the plugs first then go from there... Plugs, coils, injectors, vanos
Read the code the car is throwing first so you have a pinpoint approach
Not throwing any codes, plus the drive home today was smooth. Dont know whether to ignore it or investigate some more. Maybe there is a shadow code?
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  #12  
Old 06-24-2016, 05:47 PM
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CALWATERBOY DUE CALWATERBOY DUE is offline
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Quote:
Originally Posted by SayItAintTom View Post
Not throwing any codes, plus the drive home today was smooth. Dont know whether to ignore it or investigate some more. Maybe there is a shadow code?

When was your last nutter blast?
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  #13  
Old Yesterday, 07:30 AM
SayItAintTom SayItAintTom is offline
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Quote:
Originally Posted by CALWATERBOY DUE View Post
When was your last nutter blast?
Not too sure.. dont think it's been done at all tbh. Since im about to start modding i should probably get it done anyway. Is this a DIY or would you recommend it being done by professionals like the dealership?
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  #14  
Old Yesterday, 09:55 AM
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CALWATERBOY DUE CALWATERBOY DUE is offline
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Quote:
Originally Posted by SayItAintTom View Post
Not too sure.. dont think it's been done at all tbh. Since im about to start modding i should probably get it done anyway. Is this a DIY or would you recommend it being done by professionals like the dealership?

[do this] every 40-60k mi.
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