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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > E90 328 LCI Sedan Computer upgrade



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      03-11-2012, 10:05 PM   #1
Srivera29
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E90 328 LCI Sedan Computer upgrade

I have a 2009 E90 328 LCI sedan and want to increase my HP, Torque, and throttle response. any suggestions?
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      03-11-2012, 10:10 PM   #2
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How about the right section? http://www.e90post.com/forums/forumdisplay.php?f=35
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      03-11-2012, 10:52 PM   #3
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You can spend thousands if you want but you won't get much at all. Chips do exist that could get you maybe 10hp with an intake. Read the NA discussion forum for more info. IMO concentrate instead on making it look good.
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      03-11-2012, 11:33 PM   #4
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it will be significant power increase if your car equipped with N51 with 3 stage intake manifold, 20 more@ low 2750rpm torque can be enabled by simple flash, it feels like adding a small turbo.

check under your hood for "SULEV" if you got that your car has N51, if "ULEV" then nevermind.
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N51- Perfomance Intake - Performance Exhaust - ESS Tuned - Performance SSK - CDV Delete - AFE Mid
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      03-12-2012, 12:51 AM   #5
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i got a 3 stage manifold out of a 530i, and a bms powerbox. the manifold lets out some mid thru top end, and the bms helps the throttle response.

very, very satisfied camper.

pretty happy with this... don't want a loud exhaust or intake(for now). maybe an k&n in the future... but am going to start focusing on more chassis stuff
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      03-12-2012, 04:10 PM   #6
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Quote:
Originally Posted by avocet View Post
i got a 3 stage manifold out of a 530i, and a bms powerbox. the manifold lets out some mid thru top end, and the bms helps the throttle response.

very, very satisfied camper.

pretty happy with this... don't want a loud exhaust or intake(for now). maybe an k&n in the future... but am going to start focusing on more chassis stuff
sell your bms and get the 3 stage tuned!!
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      03-12-2012, 04:44 PM   #7
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      03-12-2012, 09:57 PM   #8
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Quote:
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not quite sure i understand your post...?
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