XBimmers X1   XBimmers X1
  XBimmers X1

Go Back   XBimmers | BMW X1 Forum > BMW X1 Forums > General BMW X1 (E84) Forum

Post Reply
 
Thread Tools Search this Thread
      02-15-2013, 09:08 PM   #1
miataken
New Member
0

 
Drives: 2012 X1, White, Xenon, Leather
Join Date: Nov 2012
Location: Canada


Posts: 28
iTrader: (0)

K&N air filter on X28i?

Anyone have tried any after market air filter, e.g. K&N? Any difference?

http://www.amazon.com/33-2963-High-P...dp/B00370V8QA/

Thanks
Appreciate 0
      02-16-2013, 08:03 AM   #2
HBWT
Second Lieutenant
2

 
HBWT's Avatar
 
Drives: 2013 X1X 2.8
Join Date: Oct 2012
Location: Va


Posts: 280
iTrader: (0)

Quote:
Originally Posted by miataken View Post
Anyone have tried any after market air filter, e.g. K&N? Any difference?

http://www.amazon.com/33-2963-High-P...dp/B00370V8QA/

Thanks
tried them on several cars a few years back. A waste of $$$ as I saw zero power gain. Some owners report issues with using them. Not worth it IMO.
Appreciate 0
      02-16-2013, 08:44 AM   #3
CIWS
Moon Parasite
United_States
3

 
CIWS's Avatar
 
Drives: X1 35i Sport (was)X6 50i Dinan
Join Date: Sep 2011
Location: D/FW


Posts: 346
iTrader: (0)

Negligible power gains if that's what you're looking for. Best thing about them is their potential longevity vs a standard filter, but then they cost more too. Some makers warn of their use (oil based filter) because some of that might dirty the MAF sensor.
__________________
Appreciate 0
      02-16-2013, 09:01 AM   #4
Grovsnus
Flight Lieutenant ≛
No_Country
8

 
Drives: Le Mans blue X1 35i
Join Date: Sep 2012
Location: CT


Posts: 854
iTrader: (0)

I haven't tried it on the X1, but the effect on a naturally aspiring V8 was more than just noticeable - it was almost like driving without an air filter. Lots more power. Granted, the 5.0 l sucks a lot more air due to the larger volume, so the effects would be higher. Engine volume * compression * rpm pretty much is how much air you need.

This also means that the benefits will be minimal if you drive in eco mode and try to avoid high rpms, but much bigger if you drive like petrol were free.

I've also tried it on a straight four 1.9 l Honda, where I honestly can't say whether a perceived power improvement was a placebo effect. There was a slight improvement in mileage, but not enough to quickly pay for the filter.

The question is whether it will throw an error code - the air stream is measured, and you may get warnings about lean mixture.
Appreciate 0
      02-16-2013, 12:40 PM   #5
CIWS
Moon Parasite
United_States
3

 
CIWS's Avatar
 
Drives: X1 35i Sport (was)X6 50i Dinan
Join Date: Sep 2011
Location: D/FW


Posts: 346
iTrader: (0)

When I had the M56 (N/A Japanese V8 420HP) I took the time to do baseline dynos. Then swapped out the air filters (M56 has two separate ducts/filters) with K&N. Re-dyno and no real difference, within % of error, at the wheels as measurable on the dyno.

Not all vehicles are the same, some will benefit from a swap odds are. Just depends on stock design and how easy it already breathes.
__________________
Appreciate 0
      02-18-2013, 08:31 PM   #6
miataken
New Member
0

 
Drives: 2012 X1, White, Xenon, Leather
Join Date: Nov 2012
Location: Canada


Posts: 28
iTrader: (0)

Thanks everyone. I agree that the experience varies from model to model, hence I wonder if there's any changes in throttle response, mileage or error code. It's unlikely it will pay for itself, and throttle response is controlled by the MCU. Just wondering if it's indeed the case.

I actually have used K&N replacement in my previous car as well, it was mainly for better throttle response more than anything else. I actually experienced worse mileage when I put into a modified, higher compression engine.
Appreciate 0
      02-18-2013, 11:41 PM   #7
Express_GD
Express_GD
United_States
0

 
Drives: 2006 530i
Join Date: Feb 2013
Location: Fayetteville, NC


Posts: 7
iTrader: (0)

Just ordered my 2014 s28i and I'm glad I read this before ordering the filter. I have one on my 530i, but it's been on so long that I can't even remember what it felt like before the swap.
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
Forum Jump


All times are GMT -5. The time now is 10:21 PM.




xbimmers
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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