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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > USA - California > Jb3 ecu upgrade???



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      10-15-2011, 11:30 PM   #1
Drunkonmelrose
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Jb3 ecu upgrade???

Can it be done on my 325i??
Of sooo what are the goods, bads from having it...
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      10-16-2011, 01:52 AM   #2
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For 335i only. You need the powerbox
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      10-16-2011, 02:20 AM   #3
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Quote:
Originally Posted by jetsXnesphips View Post
Can it be done on my 325i??
Of sooo what are the goods, bads from having it...
Yeah

you'll need a BMS PBX

JB3/Jb4 are only for the 335i
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      10-16-2011, 10:04 AM   #4
Drunkonmelrose
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Quote:
Originally Posted by persian54 View Post
Quote:
Originally Posted by jetsXnesphips View Post
Can it be done on my 325i??
Of sooo what are the goods, bads from having it...
Yeah

you'll need a BMS PBX

JB3/Jb4 are only for the 335i

Does it do the same thing?
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      10-16-2011, 10:07 AM   #5
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http://www.burgertuning.com/

Read away... Click "Tunes"
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      10-17-2011, 11:19 AM   #6
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Quote:
Originally Posted by jetsXnesphips View Post
Does it do the same thing?
Well, I was going to send you a PM/email with some help, but you haven't provided your email lol



They both make the cars faster, to put it simply
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      10-17-2011, 01:15 PM   #7
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i have the powerbox installed in my 325i and you feel a difference in the trottle response mainly, you know how you have to push the throttle past like 3/4th the way to the floor for the car to really kick, the power box makes it more responsive, and it kicks in before halfway on the pedal. i really recommend it for your 325i, lets be honest our cars are the slowest of all the e90s but this makes a little less slow haha
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      10-17-2011, 04:16 PM   #8
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Quote:
Originally Posted by jetsXnesphips View Post
Does it do the same thing?
JB3/4 = 80 horse power
PBX - 8 hp

Not quite the same thing It's easier to tune and get more power out of a FI engine vs. NA (less settings to explore)
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