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DIY - BMW Performance Intake Installation
Published by a l l a n
12-23-2008
Post DIY - BMW Performance Intake Installation

BMW Performance Intake Installation


Tools:
- torx screw
- 10mmsocket or nut driver
- small phillips screw driver
- flat head screw driver

Install time: 1 hour

Intake parts list:
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Part 1 of 2 - Removal of stock intake
Note: There is an existing stock intake removal DIY but for completeness I'll have my own DIY for this.

Step 1.1 - remove the torx screws and 10mm bolts that secure the intake channel and housing (Fig 1)

Fig 1
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Step 1.2 - remove the stock intake channel (Fig 2, Fig 3)

Fig 2
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Fig 3
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Step 1.3 - remove intake housing (Fig 4, Fig 5, Fig 6)

Fig 4
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Fig 5
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Fig 6
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Step 1.4 - remove bonnet seal and adapter (Fig 7)

Fig 7
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Part 2 of 2 - BMW Performance Intake install

Step 2.1 - replace the stock intake front housing and filter with performance parts (Fig 8, Fig 9, Fig 10, Fig 11)

Fig 8
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Fig 9
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Fig 10
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Fig 11
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Step 2.2 - install the new intake housing back to engine compartment (Fig 12)

Fig 12
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Step 2.3 - connect the carbon intake channel (Fig 13)

Fig 13
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Step 2.4 - install air intake guide (Fig 14)

Fig 14
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Step 2.5 - install housing cover (Fig 15)

Fig 15
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That's it and you're good to go!


Start the car and check for errors - you shouldn't be getting any.
__________________
E90 2007 / Step / Montego Blue / Black Dakota Leather / Premium / Cold Weather
MODS
: Exterior: Blacklines, debadged, HO ceramic 35% tint, Hoen yellow fogs, matte black grille, OEM style splitters, Halogen-to-Xenon Interior: Alum pedals, CF wrapped trim, V1 and Nuvi hardwire, M-Tech tri-stitched wheel, SMG M5 shift knob Performance: AluFelgen CSL 19" 8.5 ET33/9.5 ET30 with 5mm rear spacers | GY Eagle F1 Asym 235/265, KW V3, BMW Perf exhaust+intake
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  #1  
By E90xi on 12-23-2008, 11:42 PM
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Where did you get this intake set-up from, and what was the cost? Did you notice and sound or performance gains?
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  #2  
By mikeokimster on 12-24-2008, 01:37 AM
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I have never in my life seen such a user friendly DIY guide. AWESOME!
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  #3  
By nyc3r on 12-24-2008, 08:57 AM
Excellent write up! I vote for Allan to rewrite all DIYs in this section THANKS!
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  #4  
By FrankoQ on 12-24-2008, 09:01 AM
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Great DIY!!!
Does it sound better
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  #5  
By a l l a n on 12-24-2008, 11:08 AM
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Quote:
Originally Posted by E90xi View Post
Where did you get this intake set-up from, and what was the cost? Did you notice and sound or performance gains?
There's a GB for this. Check this out: http://www.e90post.com/forums/showpo...&postcount=102.

Quote:
Originally Posted by FrankoQ View Post
Great DIY!!!
Does it sound better
Unfortunately I didn't have enough time to evaluate the intake as I had to bring it to the shop first thing in the morning for the exhaust install.

Sound-wise, there's very little improvement or probably I didn't drive it long enough to notice it. Though I feel like the car was running better. In theory it should have an impact - the more cold air the engine gets, the better and more efficient it runs; an efficient engine does less work and shall gain better fuel consumption.

Btw, this is rated by BMW to have a performance gain of 3hp at 6K rpm.

Quote:
Originally Posted by mikeokimster View Post
I have never in my life seen such a user friendly DIY guide. AWESOME!
Quote:
Originally Posted by nyc3r View Post
Excellent write up! I vote for Allan to rewrite all DIYs in this section THANKS!
Hahaha. Thanks guys!
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  #6  
By leonardsa on 12-24-2008, 08:56 PM
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Additional Performance air intake installation notes

I just installed my performance air intake today and have some comments about your write-up. The original bonnet seal and the plastic piece under it held on by the screw have to be removed. The screw and expanding plastic piece it screws into are used to secure the air duct (part D). Make sure to position it correctly or the new bonnet seal won't fit. Also, only 4 torx screws are supplied and used to hold down the intake housing cover. The torx screws closest to the rear intake duct are already installed and do not hold down the intake housing cover. They attach additional ducting to the
underside of the intake housing cover. Still an excellent writeup and great pictures.
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  #7  
By a l l a n on 12-26-2008, 11:18 AM
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Quote:
Originally Posted by leonardsa View Post
I just installed my performance air intake today and have some comments about your write-up. The original bonnet seal and the plastic piece under it held on by the screw have to be removed. The screw and expanding plastic piece it screws into are used to secure the air duct (part D). Make sure to position it correctly or the new bonnet seal won't fit. Also, only 4 torx screws are supplied and used to hold down the intake housing cover. The torx screws closest to the rear intake duct are already installed and do not hold down the intake housing cover. They attach additional ducting to the
underside of the intake housing cover. Still an excellent writeup and great pictures.
See Step 1.4 / Fig 7 for bonnet seal and adapter removal.

Thanks for the clarification on the number of torx screws for the housing cover. I did say "supplied torx screws" but did not exactly specify how many.
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  #8  
By cgnahc on 12-29-2008, 08:02 PM
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Very nice write-up. I like the pics and annotations.
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  #9  
By slipperman on 01-06-2009, 11:13 PM
i vote this DIY as the greatest DIY in all the land
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  #10  
By PaulBailey@ltbmw on 01-06-2009, 11:18 PM
Freaking great DIY!
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  #11  
By a l l a n on 01-07-2009, 09:57 PM
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Quote:
Originally Posted by slipperman View Post
i vote this DIY as the greatest DIY in all the land

Quote:
Originally Posted by xPaulBaiLeyx View Post
Freaking great DIY!
You guys are very kind.
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  #12  
By stressdoc on 01-07-2009, 10:43 PM
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Very nice job. This should be referred to as an exemplary DIY for others to emulate. I wish they had this for the 335.
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  #13  
By txusa03 on 01-08-2009, 11:18 AM
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Quote:
Originally Posted by mikeokimster View Post
I have never in my life seen such a user friendly DIY guide. AWESOME!
+1, such a nice diy, makes me want to buy the perform intake.
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  #14  
By pcarela on 01-12-2009, 01:38 AM
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Allan this is just GREAT! Btw the last video you added to your performance exhaust thread is pretty good.
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  #15  
By a l l a n on 01-12-2009, 10:03 AM
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Thanks guys. I'm glad that many of you liked it. I'd be honored of course if future DIYs are written with the same concept taken from this DIY.

The idea basically consists of a couple of things: (1) identify and label the parts in the pictures, and (2) embed short step-by-step instructions into the pictures. Ultimately, my goal was to write a DIY that can be followed using a series of sequential pictures.

If anyone is interested, I used Skitch (skitch.com) for the annotations. This is a mac app in beta phase so I downloaded it for free. Not sure if there is a windows equivalent. Snag-It comes to mind but not sure if it's free.
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  #16  
By mikeokimster on 01-12-2009, 04:59 PM
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Quote:
Originally Posted by a l l a n View Post
Thanks guys. I'm glad that many of you liked it. I'd be honored of course if future DIYs are written with the same concept taken from this DIY.

The idea basically consists of a couple of things: (1) identify and label the parts in the pictures, and (2) embed short step-by-step instructions into the pictures. Ultimately, my goal was to write a DIY that can be followed using a series of sequential pictures.

If anyone is interested, I used Skitch (skitch.com) for the annotations. This is a mac app in beta phase so I downloaded it for free. Not sure if there is a windows equivalent. Snag-It comes to mind but not sure if it's free.

Perhaps we need an official DIY to write a successful DIY
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  #17  
By eurodude9 on 01-16-2009, 02:11 PM
is using oem any better than using other performance parts that are designed for bmw?
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  #18  
By mikeokimster on 01-16-2009, 04:16 PM
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Quote:
Originally Posted by eurodude9 View Post
is using oem any better than using other performance parts that are designed for bmw?
The benefits are as follows, build quality, 100% fitment, retention of the warranty if anything were to happen, a piece of mind when you go to service your vehicle(no need to put stock engine parts back on each time), and appearance.
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  #19  
By s.myrr on 01-18-2009, 06:29 PM
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Excellent write up! Thanks for the help - intake is on and functions perfectly!
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  #20  
By a l l a n on 01-19-2009, 01:42 AM
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Quote:
Originally Posted by s.myrr View Post
Excellent write up! Thanks for the help - intake is on and functions perfectly!
I'm glad this DIY helped. Congrats on your intake btw!
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  #21  
By s.myrr on 01-25-2009, 05:22 AM
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Thanks - I like it!
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