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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 > BMS vs. Vishnu DCI



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      10-30-2009, 09:44 AM   #1
Mr Mech
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BMS vs. Vishnu DCI

I've tried to search for this, but is there any difference in the DCI for each company. Looks pretty much the same, but a $55 difference? Are the filters different? I am looking to pick up a set, but I feel like I am missing something.
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      10-30-2009, 10:00 AM   #2
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Quote:
Originally Posted by Mr Mech View Post
I've tried to search for this, but is there any difference in the DCI for each company. Looks pretty much the same, but a $55 difference? Are the filters different? I am looking to pick up a set, but I feel like I am missing something.
I think most will tell you they are essentially exactly the same, at least in term of performance

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      10-30-2009, 11:05 AM   #3
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build your own and you can buy the filters off ebay, thats if you're really looking to save money.
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      10-30-2009, 12:01 PM   #4
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Vishnu filters are a little bigger IIRC. I also remember BMS caused a slight deformation in the stock piping where Vishnu was large enough to fit on without the squeezing or whatever. I don't remember reading any performance differences.
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      10-30-2009, 12:04 PM   #5
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The back tube on the Vishnu is slightly longer for better positioning of the filter.
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      10-30-2009, 12:07 PM   #6
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Quote:
Originally Posted by 335lvr View Post
The back tube on the Vishnu is slightly longer for better positioning of the filter.
My BMS fits perfectly, just make sure you don't push the pipe too far into the filter, and make sure they connect all the way into the piping. My cones do not even touch. Both are great investments with this nice cold weather!
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      10-30-2009, 10:07 PM   #7
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Same thing basically.
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      10-30-2009, 10:49 PM   #8
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Quote:
Originally Posted by GGreek5 View Post
Same thing basically.
Yes, they both use S&B filters. But ours have a larger ID with a reducing taper on the couplers. It does help with airflow. The OD of the couplers is also bigger so it doesn't crunch the factory induction pipes which you will only notice when/if you ever put the factory airbox back on. And the rear coupler is longer so it has better clearance with the bulk head cover. Like the whole PROcede/JB argument. Few will argue which is better. Instead, it's mainly an argument of whether the extra benefits arenworth the extra cost.

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      10-31-2009, 09:48 AM   #9
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On the couplers the BMS DCI uses aluminum 2.25" (intercooler) piping, while the Vishnu uses 2.25" mild steel (muffler) piping. The filters have the same surface area. I personally think the abrupt muffler bend transition of the Vishnu DCI is worse for flow, but it may make no difference. The stock turbo dyno record and countless 425rw+ dynos have been done with the BMS DCI. Not to mention more 11 second cars than you can shake a stick at. I also believe it is the most popular N54 intake on the market with something like 1200 sets sold. But like I said above it's six one way half dozen the other. If you buy the BMS DCI with a JB3 it's only $100 as well

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      11-01-2009, 07:17 AM   #10
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I did order o bms dci and was honestly pissed off when I realised that the coupler that was delivered was 2,25, the factory induction pipe is 2,40 .
Way to much difference in my opinion, I did buy 2 new 2.40 pipes , and throw the bms couplers away.
Another member did order a bms dci and did get the answer when he was contacting bms “ they are made that way with a purpose” what could the purpose be making them to small?
I did buy 2 sets of dci from Vishnu before , they where delivered with the right measure
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      11-01-2009, 07:40 AM   #11
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Quote:
Originally Posted by per View Post
I did order o bms dci and was honestly pissed off when I realised that the coupler that was delivered was 2,25, the factory induction pipe is 2,40 .
Way to much difference in my opinion, I did buy 2 new 2.40 pipes , and throw the bms couplers away.
Another member did order a bms dci and did get the answer when he was contacting bms “ they are made that way with a purpose” what could the purpose be making them to small?
I did buy 2 sets of dci from Vishnu before , they where delivered with the right measure
That's the difference between the two...
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      11-01-2009, 04:35 PM   #12
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Quote:
Originally Posted by coldasicex5 View Post
bang for the buck -- BMS DCI's
what he said^
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      11-04-2009, 02:36 PM   #13
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Is there any proven performance increases for the both of these vs. the stock intakes?

- I have the Dinan Stage 2, and am looking for an intake, but so far I have found that none beat the stock intake #'s.

Anyone know?

Anyone Run Dinan State 2 or 3?

thanx => Pete
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      11-04-2009, 02:44 PM   #14
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The DCI's work great with a tune in the higher PSI range
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      11-04-2009, 05:21 PM   #15
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that seems good but...

Any person that is not part of company or affiliated with a specific product?

I am talking about an avg. joe who did this:

1) Dynoed car before aftermarket intake
2) Installl aftermarket intake
3) dyno'ed car with aftermarket intake

- And compared the results.

Not to say that your stuff doesn't in-deed not work. But I have seem posts on the forum on AEM's and someone other company in whic hthey LOST power probably due to heat-soaked air, or just poor flow.

I also have the Dinan tune, and I also asked them why they haven't made one, and then response was "b/c it's already as good as it's going to get"

THis and the post about the AEM being worse are similar conclusions.

But I'd like to find an avg. joe...just to make sure. B/C from what I see on the stock intake, I feel there couild be a better, less-restrictive design.

Anyone use the Vishnu, Berger Intakes? Any before and install?

Please please post if you have any...

thanx ==> Peter
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      09-16-2010, 08:40 AM   #16
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I don't mean to be an ass about it, but just get a DCI. It adds responsiveness to your car (you can feel the difference). Also, being able to hear the turbos is very nice. I know you don't want info from the vendors, but if everyone of them have data that points to the same thing. I would believe them as well as the thousands of people that have installed them. What more could you want? Plus they are cheap as shit.
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      09-16-2010, 09:24 AM   #17
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Dont buy a DCI for performance, because you wont really gain much. I enjoy the sound much more than anything else. If you want your car to be fast save your money and put it into a tune. If you already have that and just want the piece of mind that your engine has a marginal gain in it's breathing capability, and want the sound, get a DCI. Dont waste your money on some 300 dollar intake either, just go for bang for buck here.
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      09-16-2010, 09:48 AM   #18
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Quote:
Originally Posted by MrBEEF View Post
- I have the Dinan Stage 2, and am looking for an intake, but so far I have found that none beat the stock intake #'s.

Anyone know?

Anyone Run Dinan State 2 or 3?
Of course. The Dinan intake adds 12 Hp, 13 ft-lb torque and better throttle response to Stage 2 tune.
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      09-16-2010, 09:51 AM   #19
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Quote:
Originally Posted by MrBEEF View Post
I also have the Dinan tune, and I also asked them why they haven't made one, and then response was "b/c it's already as good as it's going to get"
WTF? There is a Dinan intake in my car.
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      09-16-2010, 11:59 AM   #20
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^ look at his posting date ..DINAN didnt have a intake for sale in nov 2009
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      09-16-2010, 12:02 PM   #21
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Oops.
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