F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Performance Air Filter for F30 328i N20
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      03-14-2012, 09:25 PM   #1
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Performance Air Filter for F30 328i N20

AFE OE Replacement air filter for the BMW 328i F30 2012 L4-2.0L (t) N20. This filter is available in Pro 5R (P/N: 30-10225) and Pro DRY S (P/N: 31-10225). Constructed with 100% polyurethane, this high flow, OE replacement performance filter outflows the stock paper filter by 28% resulting in improved horsepower and torque.
Attached Images
  

Last edited by HP Autosport; 03-14-2012 at 10:45 PM..
Appreciate 0
      03-15-2012, 12:45 AM   #2
clarence
Lieutenant Colonel
44
Rep
1,544
Posts

Drives: F30 328i M-Sport
Join Date: Mar 2006
Location: Hong Kong

iTrader: (0)

Any dyno traces available?
Appreciate 0
      03-15-2012, 01:16 AM   #3
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by clarence View Post
Any dyno traces available?
No, not yet.

Just looking at the flow numbers you will pick up some power.

There will be a HPA version of the N20 high flow air fitler very soon as well!
Appreciate 0
      04-07-2012, 01:14 AM   #4
sleedawg
Private
7
Rep
87
Posts

Drives: 2015 328i & 2011 335i
Join Date: Apr 2008
Location: Fairfield County, CT

iTrader: (0)

What's the difference between the "Pro 5R" and "Pro Dry S?"
Appreciate 0
      04-07-2012, 01:50 AM   #5
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by sleedawg View Post
What's the difference between the "Pro 5R" and "Pro Dry S?"
Pro 5R is an oiled filter and supposed to flow better. Pro Dry S is a dry filter.
Appreciate 0
      04-16-2012, 11:28 PM   #6
SD_E88
Private First Class
SD_E88's Avatar
United_States
15
Rep
127
Posts

Drives: 12' 135i E88 Black
Join Date: Apr 2012
Location: San Diego, CA

iTrader: (0)

Forgive me, I've never used an oiled filter. Does it come oiled? Do I need to re-oil it? Clean it? What's the process for cleaning? or do I just replace it? How often? Again, never used an oiled filter so I'm really curious...
Appreciate 0
      04-17-2012, 12:00 AM   #7
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by SD_F30 View Post
Forgive me, I've never used an oiled filter. Does it come oiled? Do I need to re-oil it? Clean it? What's the process for cleaning? or do I just replace it? How often? Again, never used an oiled filter so I'm really curious...
The oiled filter comes pre-oiled, just install it and go. When it is due for cleaning, you will need to clean it, allow it to dry, then apply oil before re-installation.


There is also a dry version that doesn't require any oil.
Appreciate 0
      06-07-2012, 05:56 PM   #8
dude987
Second Lieutenant
Germany
30
Rep
244
Posts

Drives: BMW 335i xDrive M-Sport DHP
Join Date: Jun 2012
Location: Stuttgart

iTrader: (0)

Really!!! I have some prime real estate for sale in Florida!
Appreciate 0
      06-07-2012, 06:10 PM   #9
bcl0328
Major
92
Rep
1,185
Posts

Drives: 2012 328i
Join Date: Mar 2012
Location: Abingdon, MD

iTrader: (0)

how much HP gain?
Appreciate 0
      06-07-2012, 07:05 PM   #10
Elk
Major
31
Rep
1,285
Posts

Drives: 2012 335i
Join Date: Apr 2012
Location: *

iTrader: (0)

A few HP over a grubby stock filter.

Many oiled filters actually decrease performance from stock after they have been installed in the car for a while and have gathered some dirt. You are typically better off leaving it stock unless you are going to fastidiously clean and re-oil the filter on a very regular basis.
Appreciate 1
      06-07-2012, 09:09 PM   #11
darmawaa
Enlisted Member
3
Rep
48
Posts

Drives: 2017 M2
Join Date: Apr 2012
Location: Indonesia

iTrader: (0)

Also available for F30 335i ?
Appreciate 0
      06-21-2012, 06:24 PM   #12
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by darmawaa View Post
Also available for F30 335i ?

Yes, it is!

Pro-5R version is ready.


http://www.hpashop.com/aFe-F30-335i-...nel-Filter.htm
Appreciate 0
      06-21-2012, 08:28 PM   #13
ProbyOne
Private
ProbyOne's Avatar
United_States
13
Rep
72
Posts

Drives: Acura TL / E93 M3 / 996
Join Date: Nov 2010
Location: LA

iTrader: (0)

Quote:
Originally Posted by HP Autowerks View Post
AFE OE Replacement air filter for the BMW 328i F30 2012 L4-2.0L (t) N20. This filter is available in Pro 5R (P/N: 30-10225) and Pro DRY S (P/N: 31-10225). Constructed with 100% polyurethane, this high flow, OE replacement performance filter outflows the stock paper filter by 28% resulting in improved horsepower and torque.
I see this "flow" figure thrown out a lot by filter manufacturers.

Does this mean a 28% increase in flowrate at the same pressure drop? What kind of pressure drop across the filter do you get at different air rates?
__________________
you are a winner
Appreciate 0
      06-21-2012, 08:40 PM   #14
HP Autosport
United_States
2331
Rep
40,635
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by ProbyOne View Post
I see this "flow" figure thrown out a lot by filter manufacturers.

Does this mean a 28% increase in flowrate at the same pressure drop? What kind of pressure drop across the filter do you get at different air rates?
That is a question for AFE. I don't know how they come up with their numbers.

We measure filters on flow benches and the results are a percentage, see this thread:

http://www.e90post.com/forums/showth...ght=flow+bench
Appreciate 0
      06-21-2012, 11:38 PM   #15
ProbyOne
Private
ProbyOne's Avatar
United_States
13
Rep
72
Posts

Drives: Acura TL / E93 M3 / 996
Join Date: Nov 2010
Location: LA

iTrader: (0)

Quote:
Originally Posted by HP Autowerks View Post
That is a question for AFE. I don't know how they come up with their numbers.

We measure filters on flow benches and the results are a percentage, see this thread:

http://www.e90post.com/forums/showth...ght=flow+bench
Based on that thread the filter pressure drop was held constant and you measured the corresponding flowrates (given as a percentage).

That is exactly what I wanted to know... Thanks
__________________
you are a winner
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:15 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST