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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 > Difference from BMS single,to duals?



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      06-02-2009, 07:02 PM   #1
Dan335i
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Difference from BMS single,to duals?

Has anyone gone from a BMS single intake,to the dual cone one and felt any difference,whether good or bad?
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      06-02-2009, 11:59 PM   #2
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let you no in about 3 days lol
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      06-03-2009, 03:01 AM   #3
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BMS dual

Yes, I switch from single to the dual BMS cones.
Here are a few reasons:
1. Dual are relatively easier to install and no "burnt" markings on the sides of filters after a couple of weeks.
3. Duals have a louder, BOV, racier sound that you can hear inside the cabin and outside especially at lower revs and when shifting gears.
4. Duals are my personal preference since I assume the larger the filter/s the better the cooling properties.

It is difficult to say if their is a difference in power output between the filters unless you dyno the car, which I have not done.
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      06-03-2009, 03:03 AM   #4
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...oops!

Hope picture sizes are not too large...
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      06-03-2009, 05:10 PM   #5
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Thanks guys.
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      06-03-2009, 05:28 PM   #6
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really i thoght my singel cone was loud,


the dci is really louder?
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      06-04-2009, 03:41 AM   #7
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donald 335i

Yes,it is definitely louder. But now I want to quickly explain a discovery I made which I am sure is not really a discovery, i just did not pay attention. I met up with a friend who owns the 2007 335 coupe in the week, with the BMS duals installed and we were comparing notes and sounds and how the bmw performance strut brace is now fitting perfectly with the stock airbox removed. He noticed that my bonnet does not have a cover underneath (which his coupe has) which could also account for the fact that the sound is louder in my 2009 335 sedan - but by loud, I dont mean intrusive just more pronounced. We have the european spec bmws, so i am just wondering if all 2009 versions come without the bonnet cover.
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      06-04-2009, 09:02 AM   #8
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my bms dci isn't that loud....its just sound awesome...
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      06-04-2009, 09:23 AM   #9
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just installed my dci by bsm this morning and i love it you can hear the turbo spooling and even here the dv's whoosh.now if that dam hks blow off valve would get here
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      06-04-2009, 11:36 AM   #10
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I already have the single BMS intake, can I just use those couplings and buy a set of nice dual filters to attach them to the car?
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      06-04-2009, 11:48 AM   #11
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e92er

Quote:
Originally Posted by e92er View Post
I already have the single BMS intake, can I just use those couplings and buy a set of nice dual filters to attach them to the car?
Yes, the couplings for the duals and single filter are exactly the same in length and diameter.
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      06-04-2009, 04:48 PM   #12
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Definetely can use the couplers from the single to the duals.I ordered the dual cones from Terry at BMS.He told me if you have the single already, all you need are the dual cones as the couplers are the same.
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