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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > BMS Powerbox



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      01-19-2013, 03:19 PM   #1
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BMS Powerbox

Yes, I have searched, but I can't find specific answers to these questions from those who have actually experienced the BMW PBX:

1) Will this decrease my average gas mileage by anything significant?
2) Does this put any extra wear/tear on the vehicle engine?
3) Will this work on my 328xi (AWD) model? I see it works on the i models, but what about xi?

Thanks!
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      01-19-2013, 03:23 PM   #2
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1) maybe, user Pushkin data logged and said it burns more gas
2) prob no, the engine makes 260+ hp in Europe
3) yes, its an addon to the Dme/Ecu
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      01-19-2013, 03:35 PM   #3
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Quote:
Originally Posted by andrey_gta View Post
1) maybe, user Pushkin data logged and said it burns more gas
2) prob no, the engine makes 260+ hp in Europe
3) yes, its an addon to the Dme/Ecu
Thank you.
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      01-19-2013, 05:28 PM   #4
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My mpg has gone down. A LOT. Haha
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      01-19-2013, 07:41 PM   #5
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Quote:
Originally Posted by manutdas11 View Post
My mpg has gone down. A LOT. Haha
really? my mpg has gone up hahah
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      01-19-2013, 07:57 PM   #6
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I'm looking for one of these, btw. Lmk if you have one up for sale.
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      01-26-2013, 02:25 AM   #7
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really? my mpg has gone up hahah
Maybe just the way I drive haha
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      01-26-2013, 02:30 AM   #8
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I think it went down in mpg maybe .5-1... just because you'd get to higher revs more often than before.
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      01-26-2013, 08:22 PM   #9
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I bought my e90 with 50k on it and I didn't know I had the BMS until 10k later when I was poking around. I then tried "tuning" on/off and the different throttle remaps, and my experience says no perceptible difference in power. It runs richer and I believe it advances the timing slightly. In my head this tells me the gas mileage should average out, which is what I noticed with the way I drive. I ended up leaving it in (lazy) but running at stock because I didn't like the throttle remap either. Too twitchy for my tastes.

I'd say hold off for the alleged SC for the n52
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      01-27-2013, 03:53 AM   #10
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Quote:
Originally Posted by manutdas11 View Post
My mpg has gone down. A LOT. Haha
You have a powerbox in your car Alexis??
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      01-27-2013, 09:51 PM   #11
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Quote:
Originally Posted by JDane07
Quote:
Originally Posted by manutdas11 View Post
My mpg has gone down. A LOT. Haha
You have a powerbox in your car Alexis??
Haha yeahh. MPG have gone down maybe 1-2 from before haha
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