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      08-18-2014, 07:45 PM   #1
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2006 BMW 330i n51 Intake Manifold

Hey all,

I've been doing a lot of reading/research lately about the 3-stage Intake Manifold on the 128i. I have an n52 engine I believe. I finally found one (after many hours of searching) and I just want to be 100% sure that I found the correct one with the stage-3 and DISA actuators in it. So from my understanding, the n51 engines in the 330i's included this or am I maybe missing something?

My overall goal is to install the stage-3 manifold and get an Active Autowerkes tune to take advantage of the extra airflow and DISA valves.

Thanks in advance!
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      08-18-2014, 07:50 PM   #2
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www.realoem.com
Enter you VIN to ensure you have an N52.

http://www.turnermotorsport.com/p-17...28i528iz4.aspx
^ Part #'s and pictures.

I believe all N51s came with a 3 stage intake manifold, perhaps someone can correct me if I'm wrong.
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      08-18-2014, 08:04 PM   #3
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Thanks for the reply! So I used that website to confirm I do have the n52 engine. I'm curious about your question as well, if all n51 engines included the 3-stage manifold with DISA then what separates the 30 or so horsepower of the n51 328i's and the 330i engines?
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      08-18-2014, 08:10 PM   #4
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I guess my overall question if that's the case, where all n51 engines came with the stage 3 manifold, if I bought an intake manifold from a 2009 328i n51 would that be the same as buying one from the 2006 330i?
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      08-18-2014, 09:08 PM   #5
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Quote:
Originally Posted by akerns429 View Post
I guess my overall question if that's the case, where all n51 engines came with the stage 3 manifold, if I bought an intake manifold from a 2009 328i n51 would that be the same as buying one from the 2006 330i?
yes. But you want the most newest manifold you can find.
2009+ is what i would look for ( x3, x5, n51 3, n51 1, n51 5)
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      08-19-2014, 06:22 AM   #6
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Quote:
Originally Posted by akerns429 View Post
Thanks for the reply! So I used that website to confirm I do have the n52 engine. I'm curious about your question as well, if all n51 engines included the 3-stage manifold with DISA then what separates the 30 or so horsepower of the n51 328i's and the 330i engines?
N51 is lower compression with more emissions gear, both of which sap power. That being said, there is still a fair bit left on the table from the factory in terms of the intake manifold and aftermarket tuning.
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      08-19-2014, 12:41 PM   #7
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Quote:
Originally Posted by TheSt|G View Post
N51 is lower compression with more emissions gear, both of which sap power. That being said, there is still a fair bit left on the table from the factory in terms of the intake manifold and aftermarket tuning.
That makes sense! So if I use the intake manifold from the n51 328i as well as tuning/euro airbox and headers/exhaust On my n52 engine, I can probably gauge around a 30-40 HP gain, correct?
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      08-19-2014, 12:42 PM   #8
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Quote:
Originally Posted by akerns429 View Post
That makes sense! So if I use the intake manifold from the n51 328i as well as tuning/euro airbox and headers/exhaust On my n52 engine, I can probably gauge around a 30-40 HP gain, correct?
Yup.

Skip the Eurobox if you want to save money. It doesn't do much if anything.
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      08-19-2014, 12:59 PM   #9
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Originally Posted by TheSt|G View Post
Yup.

Skip the Eurobox if you want to save money. It doesn't do much if anything.
It is definitely a bit pricey for the airbox. I was actually thinking of just throwing a K&N in there and removing the carbon filter. Would it really hurt anything if I removed that carbon filter?
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      08-19-2014, 01:07 PM   #10
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Quote:
Originally Posted by akerns429 View Post
It is definitely a bit pricey for the airbox. I was actually thinking of just throwing a K&N in there and removing the carbon filter. Would it really hurt anything if I removed that carbon filter?
No ability to comment on the negatives of pulling the carbon filter. I wouldn't deviate from the stock filter though.
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      08-19-2014, 01:12 PM   #11
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Very cool, thanks for the information! Do you think the Active Autowerkes tune for the 3 stage intake would be a good choice? I'm also debating whether I just want to have someone locally install the software or order the Simon tool so I can do it myself. I believe it's around a 200 dollar difference when I factor in the labor cost of the shop doing it.
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      08-19-2014, 02:36 PM   #12
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Quote:
Originally Posted by akerns429 View Post
Very cool, thanks for the information! Do you think the Active Autowerkes tune for the 3 stage intake would be a good choice? I'm also debating whether I just want to have someone locally install the software or order the Simon tool so I can do it myself. I believe it's around a 200 dollar difference when I factor in the labor cost of the shop doing it.
After purchasing Evolve & A.A. I would suggest getting the flash tool, no matter what tuner you go with.
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      08-19-2014, 02:41 PM   #13
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Quote:
Originally Posted by akerns429 View Post
Very cool, thanks for the information! Do you think the Active Autowerkes tune for the 3 stage intake would be a good choice? I'm also debating whether I just want to have someone locally install the software or order the Simon tool so I can do it myself. I believe it's around a 200 dollar difference when I factor in the labor cost of the shop doing it.
Active makes a good tune, but I prefer (and have)Evolve.
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      08-19-2014, 03:04 PM   #14
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Quote:
Originally Posted by TheSt|G View Post
Active makes a good tune, but I prefer (and have)Evolve.
I bought some DISA gaskets, but they are used. What should I check for to make sure they are in good condition? Also, which evolve tune do you recommend for the 3 stage intake? I may add the headers down the road if I can find some for a good price.
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      08-19-2014, 03:33 PM   #15
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Quote:
Originally Posted by akerns429 View Post
I bought some DISA gaskets, but they are used. What should I check for to make sure they are in good condition? Also, which evolve tune do you recommend for the 3 stage intake? I may add the headers down the road if I can find some for a good price.
DISA gaskets? You will need new intake manifold gaskets at a minimum.

Stage 2 Evolve tune is the one designed for the 3 stage. Headers are definitely a good option down the road, and work quite well with the Evolve tune as Evolve works closely with Supersprint.
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      08-19-2014, 03:44 PM   #16
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Ahh, I guess I meant the DISA adjusters that plug in to the existing, non-used wires. I did get new gaskets for the manifold as well as new screws and bolts.
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      08-19-2014, 05:32 PM   #17
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Quote:
Originally Posted by akerns429 View Post
It is definitely a bit pricey for the airbox. I was actually thinking of just throwing a K&N in there and removing the carbon filter. Would it really hurt anything if I removed that carbon filter?
No, it wouldn't. It's there for emissions reasons. Mine's gone. Just make sure when you cut it out that you sand down the edges of where it fits in and remove it entirely.
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      08-19-2014, 05:52 PM   #18
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Quote:
Originally Posted by MarkkyyMan View Post
After purchasing Evolve & A.A. I would suggest getting the flash tool, no matter what tuner you go with.
Is it fairly easy to use the flash tool? From my understanding, you just plug it into your ECU, download the data, then send them an e-mail so they can do the mapping, then redownload it to the flash tool and then upload it back to your car. It sounds like you can switch back and forth from the A.A software and stock software?
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      08-19-2014, 06:28 PM   #19
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Quote:
Originally Posted by akerns429 View Post
Is it fairly easy to use the flash tool? From my understanding, you just plug it into your ECU, download the data, then send them an e-mail so they can do the mapping, then redownload it to the flash tool and then upload it back to your car. It sounds like you can switch back and forth from the A.A software and stock software?
I can't speak for Evolves, but AA;s flash tool is pretty easy to use. You install software they provide on a USB, plug in the tool, update it and get it ready to use, and then upload all of your files. Plug car into battery tender/charger, plug in simon tool, LEAVE THE DOOR OPEN THE ENTIRE TIME WHILE TUNING(so the car doesn't go to sleep), and then flash it while following the on screen instructions.

First read takes like 45 minutes, every flash after that has taken me 10-15 minutes. I have all 4 of my flashes on my tuner just in case i need to swap in a pinch. Reflashing also clears codes if you have no other way to clear codes.
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      08-19-2014, 07:32 PM   #20
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Quote:
Originally Posted by 631twentyeighteye View Post
I can't speak for Evolves, but AA;s flash tool is pretty easy to use. You install software they provide on a USB, plug in the tool, update it and get it ready to use, and then upload all of your files. Plug car into battery tender/charger, plug in simon tool, LEAVE THE DOOR OPEN THE ENTIRE TIME WHILE TUNING(so the car doesn't go to sleep), and then flash it while following the on screen instructions.

First read takes like 45 minutes, every flash after that has taken me 10-15 minutes. I have all 4 of my flashes on my tuner just in case i need to swap in a pinch. Reflashing also clears codes if you have no other way to clear codes.
It looks like their flash tool costs around 350.00 is there an alternative from using this simon flash tool? I noticed they have a cheaper one but it doesn't look like it works with the e82.
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      08-19-2014, 07:42 PM   #21
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Best intake (in terms of power) has been the AFE Stage 2 SI - BUT $450 is a lot of money for an intake.
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      08-19-2014, 07:51 PM   #22
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Quote:
Originally Posted by TheAxiom View Post
Best intake (in terms of power) has been the AFE Stage 2 SI - BUT $450 is a lot of money for an intake.
How do you like your euro intake? That would be my overall choice with the k&n filter. I have seen them new sold for 400 but I am having a very hard time tracking one down for a cheaper price.
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