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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 06-03-2002, 01:17 PM   #1
JetBlack330xi
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True benefits to CAI?? cost/maintenance...

I have a 2002 330xi, and i want to give it a little performance boost. I'm thinking of adding a CAI and i need some advice:

- is the power gain noticable? give details.. (like the car on hot-days compared to cold ones?)
- is there a lot of maintenance/problems?
- how long to install, DIY or bodyshop? price?
- if i should get one, which is the best brand and where should i order it from?

thanks in advance!
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Old 06-03-2002, 01:35 PM   #2
drewcon
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search the forum...

I have ECIS:

It takes about 30 minutes to install.
I have no problems (error lights etc.)
Dinan vs. ECIS...you tell me, ECIS is alot easier to install.
I can feel a differance and I love the sound.
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Old 06-03-2002, 01:53 PM   #3
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Re: search the forum...

Quote:
Originally posted by drewcon
I have ECIS:

It takes about 30 minutes to install.
I have no problems (error lights etc.)
Dinan vs. ECIS...you tell me, ECIS is alot easier to install.
I can feel a differance and I love the sound.
Of all the Intakes available for e46,
only Dinan and the Dinan knockoff; Motronix is a true CAI I believe.
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Old 06-03-2002, 03:05 PM   #4
JetBlack330xi
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meaning?

meaning waht? that the ECIS isn't as effective, not as much gain?
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Old 06-03-2002, 03:06 PM   #5
vinnymac
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Oh boy...

this is going to open a huge can of worms....
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Old 06-03-2002, 03:16 PM   #6
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Re: Oh boy...

Quote:
Originally posted by vinnymac
this is going to open a huge can of worms....
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Old 06-03-2002, 03:23 PM   #7
mattman
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For the 330CI..

You can feel 11 HP and 8 Lb Torque at 6500RPM!?!

I think most people hear the sound and assume more power.. (which is true) but can one feel it.. i don't think so.
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Old 06-03-2002, 03:26 PM   #8
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It's not just about the numbers...

Quote:
Originally posted by mattman
For the 330CI..

You can feel 11 HP and 8 Lb Torque at 6500RPM!?!

I think most people hear the sound and assume more power.. (which is true) but can one feel it.. i don't think so.
The throttle response was greatly improved on my 330Ci when I added the Dinan CAI.

The install isn't that bad and servicing the fileter is pretty easy too...just remove the driver side wheel, take off the splash gaurd, and the filter is right there.
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Old 06-03-2002, 03:34 PM   #9
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um yeah.. you can feel it.. in fact I noticed the feel more than the sound... especially in the mid to high range.

As far as ECIS vs. Dinan, get over it, ECIS is a CAI as well and in some ways is more so:

1. ECIS has a cold box, Dinan does not
2. ECIS intake is in the direction of air flow, Dinan really isn't.. I know there is some updraft, but a lot less vertical than horizontal.
3. Dinan is in a stupid place if you live in a wet climate. These filters are not water lovers.

I personally hate Dinan. They are over-priced and they earned a name, but let everythng drop these last couple of years. still claim thay can't get more hp out of the 330 chip.. that's total BS.. AA and a dozen other guys can do it.
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Old 06-03-2002, 04:09 PM   #10
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Quote:
Originally posted by israelsailor
um yeah.. you can feel it.. in fact I noticed the feel more than the sound... especially in the mid to high range.

As far as ECIS vs. Dinan, get over it, ECIS is a CAI as well and in some ways is more so:

1. ECIS has a cold box, Dinan does not
2. ECIS intake is in the direction of air flow, Dinan really isn't.. I know there is some updraft, but a lot less vertical than horizontal.
3. Dinan is in a stupid place if you live in a wet climate. These filters are not water lovers.

I personally hate Dinan. They are over-priced and they earned a name, but let everythng drop these last couple of years. still claim thay can't get more hp out of the 330 chip.. that's total BS.. AA and a dozen other guys can do it.
who are the dozen of other guys? And do they desolder the ecu to get the tuning?

I agree dinan is overpriced. I have more horizontal airflow than vertical, from looking at my bumper, I can see where the bumper has been cut to allow the air to flow to the intake.
-Ecis looks like any intake you can get for any car, and a lot of shops sell their own that are just like ecis, but without the shielding. I like the dinan because it looks like more effort was put into the design.
just my opinion
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Old 06-03-2002, 04:11 PM   #11
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Oh man... here we go again. Why does the air filter has to be near the bottom to be a "true CAI"...
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Old 06-03-2002, 04:20 PM   #12
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First the ECU has to be sent out because of the nature of this type of ECU. Soldering? Yeah, to secure the pins to the board, duh! Super glue doesn't conduct nearly as well.

Who are the other twelve guys? Do a freaking search.. here are two that I like:

1. Active Autowerke
2. ESS Tuning

I know a couple more if these guys make your knees shake.

Dinan doesn't know an E46 exhaust from an elephant's sphincter.
I hate smart asses.. ask me what I did to them when I was in the army.
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Old 06-03-2002, 04:37 PM   #13
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Quote:
Originally posted by israelsailor

I hate smart asses.. ask me what I did to them when I was in the army.
What'd you do to them when you were in the army?
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Old 06-03-2002, 04:42 PM   #14
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I'm just curious,
-Does these new "chips" hide themselves from any diagnostic on the car?
-having a downtime of 3-8 days sounds no fun, plus if you don't like it you gotta have it sent back to be burnt back to OEM, plus any mistake on their part and bye-bye ecu.
-I have yet to hear good things about any chip tuning that isn't a software download and i've been on this board for 2 years, not counting the tuning for SC's
-torched ECU =torched warranty?
-what did you do to smartasses in the army?

break me off some knowledge, always willing to learn.
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Old 06-03-2002, 04:42 PM   #15
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lol.. well if it was the enemy, we had a trick that would painfully and creatively remove their trigger finger. I wont post the technique, but you've never heard of it before. There are other options, but I don't want to make anyone on the board cry, lol.

If it was someone under my command, I would see how many facial bones I could shatter. Oh, and nothing like smashing a nose flat.. that's a fun one.

Man, stress was not a problem during those days.
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Old 06-03-2002, 04:47 PM   #16
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hey Fisch, I see what you are driving at.. sorry I was so harsh, I thought you were trying to make trouble. If you are worried about quality and warranty and future problems, I strongly recommend AA.. I am having them do mine in the coming weeks.. as soon as my car comes back from BMW. Check out their website and email them.. they are very nice and they know what they are doing.
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Old 06-03-2002, 05:38 PM   #17
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Guys, dont mean to start a flame here. but i had a ECIS style intake in my E36 (97 328i) and after about 7k miles, i had to put back the factory airbox since my car was being totalled. There was thick thick layer of dust in the neck of the MAF sensor tubing.
that is the downside of CAI unless i believe the foam type filter (ITG??)will be better than the K&N style.
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Old 06-03-2002, 07:40 PM   #18
crose
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What about Conforti CAI

It has a large shield to block heat from the engine and uses the ITG foam filter. Recently cleaned it for the first time...there was absolutely no dust by the MAS. And yeah I think Dinan is way overpriced. Just my opinion.
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Old 06-03-2002, 08:01 PM   #19
CarterAce1
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Isnt that just basically the same setup as the OEM airbox? I mean, nose air in, special filter- is there a noticeable power gain from this setup? I'm trying to decide what to do for my intake.
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Old 06-03-2002, 09:21 PM   #20
valerie
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well, i don't want to dive into the CAI wars here and lose my trigger finger (i need it, havent gone shooting in ages) but I'll say that I'm very happy with the Dinan CAI and software I have that optomizes it. I've has it for almost 2 years and except for a filter change it has needed no maintenance and has had no problems. i found a good local Dinan dealer in my area for the purchase and install, and got a GP together which got us all 15% off parts and labor. (the dealer has kindly checked the CAI periodially when i've had questions and replaced the filter with no labor charges that I can think of over this time as well). the combo of software and CAI definately gave me results with my 328ci that I could feel.

hope that helps

PS: I find it amusing when people who bought BMWs complain that Dinan is overpriced.

PPS: I do not know if the Dinan warranty stands if the parts are not installed by a Dinan dealer
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