[QwiksilverA4]

got some typical cone filters 30bucks for 2

some home depot couplers 2bucks

and 2 clamps .50 cents

total of 35bucks and change.

my analysis of it all. its the same as the next guy who paid 99-130 bucks for the BMS. performance? beats me. but it sounds cool.

[Forcefed3]

Where did you buy the filters?

[jaxxx]

what kind of couplers did you use??

[QwiksilverA4]

go to plumbing section and get 2" to 2" couplers.

filters came from ebay

[forza1976]

cool DIY OP

[MF80]

Great job, Op.
So, we would call it "QwiksilverA4 DCI"

J-

[Misturrtinnie]

Yeah, it's cheaper but how good are the filters?

[sole cal]

Originally Posted by Misturrtinnie

Yeah, it's cheaper but how good are the filters?

+1

[Tee212]

Good job on sourcing the parts for cheap, wish i did the same.

[cstavaru]

Cheapest N54 intake ever

[Alpine Whiteboy]

They even LOOK better. When looking for cones, what size is the piping where it connects??

[TwnTrboCAT1212]

Originally Posted by Misturrtinnie

Yeah, it's cheaper but how good are the filters?

+1

To the OP, I'd be a bit worried about those FleaBay filters if I were you...there's a Reason why they are that cheap. Back in Highschool my buddy put one of those AutoZone(ish) filters on his Grand Prix just cause he knew it would sound cool, but it actually barely filtered anything and allowed so much debris into his engine over a few months that his motor was almost killed and he ended up paying over a Grand in repairs just because of that cone...better to be safe than sorry..Especially on such nice, expensive cars as ours.

~Chris~

[BOOSTED4DR]

Ive never heard of anyone havin problems with the autozone filters,I know the flow is not the same. But far as problems never.You can also go to pep boys for filters....but nice job on the DCI

[QwiksilverA4]

hi guys,

As an ME in the semi business i do alot of temp. measurement. so as a result i have 3 thermocouples put in the engine..

i have 2 30awg taped using capton tape to my cones.
and for ambient in between the cones im using a 12awg T/C.. im going to log this on freeway and traffic when im driving home.
-things ill be looking for... are these crap filters (ill know by using a CFM monitor)
-what temp is the air thats being sucked in (T/C)
-what temp is constant on the cones. (T/C)

ill have reports back in the near week

if all goes well ill compile all the parts you would need and sell them to you guys on the forum.

[biz77]

Originally Posted by maxnix

Actually, it cost more than the much better designed OEM one for which he already paid. So he is out money and has less performance.

Don't you think BMW would have built it this way if it was better and less expensive?

Better designed for what? An OEM must balance cost, fuel efficiency, performance, longevity, serviceability and noise when designing parts. Sometimes an enthusiast's order of importance on these items does not line up with the OEM's. I'm not arguing whether or not there is a performance benefit here, as only testing can conclude that.

These appear to be Spectre filters. They are cheap and plentiful at AutoZone and the like. Many people use them. I have no experience with them: http://www.spectreperformance.com/#HOME

[lyndon_h]

Originally Posted by QwiksilverA4

hi guys,

As an ME in the semi business i do alot of temp. measurement. so as a result i have 3 thermocouples put in the engine..

i have 2 30awg taped using capton tape to my cones.
and for ambient in between the cones im using a 12awg T/C.. im going to log this on freeway and traffic when im driving home.
-things ill be looking for... are these crap filters (ill know by using a CFM monitor)
-what temp is the air thats being sucked in (T/C)
-what temp is constant on the cones. (T/C)

ill have reports back in the near week

if all goes well ill compile all the parts you would need and sell them to you guys on the forum.

Its cool that you have the knowledge to be able to determine if they are doing the job. Nice, I'm looking forward to hearing the results, even though I have an EAS filter.

[Mr. 5]

Originally Posted by Misturrtinnie

Yeah, it's cheaper but how good are the filters?

This is the scary part.
People should also worry about the filtration of the filters instead of just flow.
I'm not saying that these filters are bad (because I don't know what brand they are) but I just hope the OP figured this out before installing it.

[QwiksilverA4]

you guys are all very true in your arguments i wont know until i take these darn things off and sample the dirt out. hopefully its minimal. well see.

[Jeff@TopGearSolutions]

I dont know which filters those are...

The only thing I can say, is SOME (not all) cheap Filters tend not to filter as well. (proven).

Some only have 2 layers, some have 4 layers, and only filter up to certain microns.

Last I looked into it APEXI and K & N Both filter out the most and have the best performance at the sametime.

Something like a Greddy FOAM filter was known to have great performance, but horrible filtration and degrade and flake overtime.

I'm not hating on trying to save money as best we can, but we also have to think about safety of the engine... Again, I dont know specifics on these filters... but its something to think about.

No disrespect, props for looking out of the norm, but need to keep in mind, they are filtering the air going into your turbo's and you dont drive a cheap car.

Doesn't mean we need to pay a BMW tax, but need to be smart shoppers.

[Transport3r]

What filters does BMS use?

FWIW, one of my friends had a spectre filter on a 2001 chrysler sebring (one with the mitsu v6) and destroyed his engine in about 2 years. The thing refuses to run properly. I'm not saying i blame the filter, but other than that the car was stock. Granted we are talking about a chrysler product...

[TriniJots]

creative.....
never thought about trying that.
let us know how it turns out in the long run

[iBoost]

Props for doing it yourself OP, but honestly just go to autozone and look for a K&N cone filter with the same dimensions or order better cone filter online. Take them off asap, for your engines sake. I was about to do the exact same thing you did, but i did my research and honestly BMS put together a really awesome DCI for a cheap price! I just recieved my third set from them today

Originally Posted by joshuo

What filters does BMS use?

FWIW, one of my friends had a spectre filter on a 2001 chrysler sebring (one with the mitsu v6) and destroyed his engine in about 2 years. The thing refuses to run properly. I'm not saying i blame the filter, but other than that the car was stock. Granted we are talking about a chrysler product...

S&B Filters. Theyre 8-ply.