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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Three Stage Intake Manifold Conversion for 328/325



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      04-13-2013, 09:30 PM   #419
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I was considering calling around to a few junkyards to see if they have a wrecked car with a 3 stage IM with low miles. What information should I provide to a junkyard dealer? A part number? I'm afraid that if I say I need a 3 stage IM for a E90 they will have no idea about what I am talking about.
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      04-13-2013, 09:43 PM   #420
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tell them intake manifold for 2006 330i. they will look for that part number which is the same for the n51s that have it.. thats what i did at least
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      04-13-2013, 09:58 PM   #421
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Quote:
Originally Posted by SDemetris View Post
tell them intake manifold for 2006 330i. they will look for that part number which is the same for the n51s that have it.. thats what i did at least
Should I also mention that I need the actuator motor, or do they assume that?
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      04-14-2013, 12:22 AM   #422
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Quote:
Originally Posted by kd8ksn View Post
Should I also mention that I need the actuator motor, or do they assume that?
Mixed results, I asked for photos and description by asking saying are all the "Sensors" attached LOL
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      04-14-2013, 06:33 AM   #423
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Quote:
Originally Posted by andrey_gta View Post
Mixed results, I asked for photos and description by asking saying are all the "Sensors" attached LOL
Thanks.
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      04-14-2013, 08:49 AM   #424
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Can't believe I just read 20 pages of questions and answers but still no DIY. I realize some of you have posted your own but I was looking forward to reading THIS DIY because the guy seemed to know his stuff. Oh well, this isn't the first...
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      04-14-2013, 10:07 AM   #425
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Quote:
Originally Posted by kd8ksn View Post
Should I also mention that I need the actuator motor, or do they assume that?
If its from a wrecked car theyre just gonna rip the whole thing out. I doubt theyll take the motors off the intake manifold unless they really know the n52
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      04-14-2013, 04:25 PM   #426
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Quote:
Originally Posted by matthatchett View Post
Can't believe I just read 20 pages of questions and answers but still no DIY. I realize some of you have posted your own but I was looking forward to reading THIS DIY because the guy seemed to know his stuff. Oh well, this isn't the first...
I would be so willing to do a comprehensive DIY if a could find a 3 stage IM cheap.
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      04-14-2013, 06:36 PM   #427
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Quote:
Originally Posted by kd8ksn View Post
I would be so willing to do a comprehensive DIY if a could find a 3 stage IM cheap.
+1

I'm willing to give this a shot with a great DIY.
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      04-14-2013, 07:09 PM   #428
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Quote:
Originally Posted by Ghode View Post
+1

I'm willing to give this a shot with a great DIY.
Looks like there is one here for a Z w/ N52. I would imagine the DIY would be the same for an E90 since the engines are the same.

http://www.zpost.com/forums/showthread.php?t=455180
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      04-14-2013, 08:04 PM   #429
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Is there any way to get that manifold for cheaper? Otherwise it really seems like an expensive project-- nice gains, though.
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      04-14-2013, 08:22 PM   #430
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I did it myself and there was nothing tricky. just some pain in the ass hose ends that you gotta squeeze the shit out of to get off. Just once you take off your old one, note all the connections on it and just be sure you reconnect the three stage one in all of those places.. shouldnt take more than a weekend if you work for 4 hours on saturday and sunday. I could probably do it faster now that I know what all tools I need
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      04-14-2013, 09:07 PM   #431
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it was actually fairly simple, following the numerous DIY posts. took me about 4 hours...a shade over 3 for the manifold removal. installing the 3 stage and plugging everything back was quick.
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      05-31-2013, 09:11 AM   #432
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So I'm reading the OP and went to the websites for the parts. It seems that the first item, the Intake Manifold has gone up significantly in price...over a $100 in price. Also, it also seems that our motor (N52) are running the same part#. Is there a specific year and model that we're suppose to be using when ordering the parts?
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      05-31-2013, 09:13 AM   #433
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All of the N52 3-stage intake manifolds should all have the same part number.
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      05-31-2013, 09:18 AM   #434
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Quote:
Originally Posted by e90pilot View Post
All of the N52 3-stage intake manifolds should all have the same part number.
So It doesn't matter if the parts are showing up for a 2006 330i or a 2012 128i..if it's the same part# (11617559523) it'll be the 3 stage intake manifold... Just clarifying. Thanks
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      05-31-2013, 09:30 AM   #435
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Quote:
Originally Posted by dangeris View Post
So It doesn't matter if the parts are showing up for a 2006 330i or a 2012 128i..if it's the same part# (11617559523) it'll be the 3 stage intake manifold... Just clarifying. Thanks
Yes, but make sure that 128 is and N51. The N52 '28s have just a regular single stage manifold. The part number may differ if you buy a used one. I'm not sure if the manifold has gone through any updates. If it has the older ones will have a different part number, but if you look it up in a parts database it will say it's been superseded with the new one. Either way they all should work.
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      05-31-2013, 09:39 AM   #436
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Quote:
Originally Posted by e90pilot View Post
Yes, but make sure that 128 is and N51. The N52 '28s have just a regular single stage manifold. The part number may differ if you buy a used one. I'm not sure if the manifold has gone through any updates. If it has the older ones will have a different part number, but if you look it up in a parts database it will say it's been superseded with the new one. Either way they all should work.
Ok..so on www.bmwmercedesparts.com, when I did a search for that part#, like I said it came back with a bunch of different years and models. But for this, I would order:

2012 - BMW - 128I - N51B30A - L6 - 3.0L - GAS
FUEL SYSTEM / FUEL INDUCTION / INTAKE / INTAKE MANIFOLD
11617559523 - INTAKE MANIFOLD 128i; Convertible

as opposed to:...

2012 - BMW - 128I - N52B30A - L6 - 3.0L - GAS
FUEL SYSTEM / FUEL INDUCTION / INTAKE / INTAKE MANIFOLD
11617559523 - INTAKE MANIFOLD 128i; Convertible
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      05-31-2013, 09:53 AM   #437
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It should say N51 but that part number is correct.
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      05-31-2013, 12:13 PM   #438
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11617559523 Intake Manifold
11617579114 Adjustor Unit
11617560538 Adjustor Unit 2
11617547242 Gasket set
11617535850 x2 Screw 50x35
11617535849 x4 Screw 50x20
11617535851 x1 Screw 50x66

Those the part u should order.
I still looking too to find some parts in good price. Let me know man
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      05-31-2013, 04:09 PM   #439
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Tisher actually sells a "kit" for our cars. I got mine new with hardware for 900ish when they were running their winter special...
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      06-21-2013, 01:27 PM   #440
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Does anyone know if original poster completed conversion with power chips or AA tune or other ?
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