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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > fmic



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      02-20-2010, 06:19 PM   #1
john boxter
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fmic

so i am about to purchase a fmic i cant wait to instal it, i have two questions for you guys if someone can please help me,

1) do i have to take it off when i go to the dealer or will they not even notice it (spearco code 3 no logo)

2) with out the heat soak factor so if i do one run on a dyno with this upgraded fmic vs 1 run with the stock intercooler (therefore no time to heatsoak) would i see a difference and is this a noticable difference i can feel?

thanks alot guy
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      02-20-2010, 07:41 PM   #2
blisstik
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1. Depends on your dealer and tech. If the tech snoops around and tells your SA you have an FMIC, they might use it against you.

2. Upgraded FMIC provides cooler IATs so you're looking at multiple runs on stock vs multiple runs aftermarket. I doubt you'd be able to tell the difference in 1 run.

If you do a dyno, there should be a gain for sure.
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      02-21-2010, 08:48 AM   #3
raylandm
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are you serious?? Its gonna be frakkin hard to have to take an FMIC off everytime you have to go to the dealer!!!
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      02-21-2010, 10:39 AM   #4
PUMPD
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No where near as hard as the DP's. Get a FMIC that is easy install and removal.
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      02-21-2010, 01:00 PM   #5
persian54
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Quote:
Originally Posted by coldasicex5 View Post
my dealership knows i have an FMIC, the SA know and was like "its not like that is ever gonna cause a problem, we just dont want to see a tune or catch can in the car".. i lucked out i guess.

all depends on dealership
Why would they trip over a OCC so much?
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      02-21-2010, 02:15 PM   #6
Spydeputy
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i showed my SA the riss occ video first. he said it can only help, go ahead. my next mod is the FMIC so i will run that by him too.
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      02-22-2010, 09:39 AM   #7
john boxter
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Ya that is strange but I guess the point is u should take out ur fmic cause it may void ur warranty?
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