K&N Air Filter
11-25-2006, 10:08 AM
#31
Members
Join Date: Apr 2005
Location: TT
Posts: 190
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Titanium Silver 2004 525i, style 116 alloys,
Got the K&N from Amazon a few days ago for $47 including shipping.
Agree with the above posters - seems to have better power at lower rpms, and more peppy starts, also revs seem to pick up slightly faster for a given tap on the X.
Slightly louder sound at high speeds I think.
My old paper filter was 2 years old and noticeably dirty, so I don't know if the improvement was mainly from having a clean filter again.
Agree with the above posters - seems to have better power at lower rpms, and more peppy starts, also revs seem to pick up slightly faster for a given tap on the X.
Slightly louder sound at high speeds I think.
My old paper filter was 2 years old and noticeably dirty, so I don't know if the improvement was mainly from having a clean filter again.
11-26-2006, 04:07 AM
#32
Contributors
Join Date: Sep 2006
Location: Hong Kong
Posts: 21,274
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Mini Cooper
Originally Posted by Markymark' post='360506' date='Nov 26 2006, 03:08 AM
Got the K&N from Amazon a few days ago for $47 including shipping.
Agree with the above posters - seems to have better power at lower rpms, and more peppy starts, also revs seem to pick up slightly faster for a given tap on the X.
Slightly louder sound at high speeds I think.
My old paper filter was 2 years old and noticeably dirty, so I don't know if the improvement was mainly from having a clean filter again.
Agree with the above posters - seems to have better power at lower rpms, and more peppy starts, also revs seem to pick up slightly faster for a given tap on the X.
Slightly louder sound at high speeds I think.
My old paper filter was 2 years old and noticeably dirty, so I don't know if the improvement was mainly from having a clean filter again.
2 years for a filter now thats alot. MPG will be low for that and I think it world not be that good for the engine.glaed that you got a new 1 now and liking it.
BTW if you drive alot clean your filter every 6 months that what I do to keep my car up to 100%
11-26-2006, 02:45 PM
#33
Contributors
Thread Starter
Join Date: Oct 2006
Location: Seattle, WA
Posts: 752
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006 525i Silver Gray/Gray Dakota Leather | Steptronic | Cold Weather | Xenon | Premium Package
Modifications:
M Aero Kit | Carbon Fiber Kidney Grill | K&N Air Filter | Charcoal Filter Removed | Radenergie R10 Silver 20" soon | kW coilover V3 | SprintBooster soon | M5 trunk finisher
Next planned mods:
?Hamann quad exhaust + Hamann quad rear diffuser + Hamann Front Lip?
I've gotten used to the little more power the filter seemed to give me, but I'm getting used to it. I need more power!! 
11-26-2006, 03:16 PM
#34
Contributors
Join Date: Sep 2006
Location: Hong Kong
Posts: 21,274
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Mini Cooper
Originally Posted by arcleid' post='360857' date='Nov 27 2006, 07:45 AM
I've gotten used to the little more power the filter seemed to give me, but I'm getting used to it. I need more power!! or even better put a twin turbo
11-27-2006, 09:01 PM
#35
Contributors
Thread Starter
Join Date: Oct 2006
Location: Seattle, WA
Posts: 752
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006 525i Silver Gray/Gray Dakota Leather | Steptronic | Cold Weather | Xenon | Premium Package
Modifications:
M Aero Kit | Carbon Fiber Kidney Grill | K&N Air Filter | Charcoal Filter Removed | Radenergie R10 Silver 20" soon | kW coilover V3 | SprintBooster soon | M5 trunk finisher
Next planned mods:
?Hamann quad exhaust + Hamann quad rear diffuser + Hamann Front Lip?
I might do that after the warranty expires 
11-28-2006, 07:20 AM
#36
Members
Join Date: Nov 2006
Location: Northern Virginia
Posts: 129
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Alpine White 2007 550i
re: the charcoal filter
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
11-28-2006, 07:23 AM
#37
Contributors
Join Date: Sep 2006
Location: Hong Kong
Posts: 21,274
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Mini Cooper
Originally Posted by Locksmythe' post='361470' date='Nov 29 2006, 12:20 AM
re: the charcoal filter
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
11-28-2006, 08:33 AM
#38
Contributors
Thread Starter
Join Date: Oct 2006
Location: Seattle, WA
Posts: 752
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006 525i Silver Gray/Gray Dakota Leather | Steptronic | Cold Weather | Xenon | Premium Package
Modifications:
M Aero Kit | Carbon Fiber Kidney Grill | K&N Air Filter | Charcoal Filter Removed | Radenergie R10 Silver 20" soon | kW coilover V3 | SprintBooster soon | M5 trunk finisher
Next planned mods:
?Hamann quad exhaust + Hamann quad rear diffuser + Hamann Front Lip?
Cause US likes to be different? Like in the use of the units, where most of the world is already using metric.
Like in the use of the units, where most of the world is already using metric.
11-28-2006, 03:13 PM
#40
Members
Join Date: Nov 2006
Location: Northern Virginia
Posts: 129
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Alpine White 2007 550i
Originally Posted by Locksmythe' post='361470' date='Nov 28 2006, 11:20 AM
re: the charcoal filter
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
I can't imagine it really has much effect on the environment at all. That filter is pre-combustion. Anything that is being filtered out was already in the air to begin with.
Well, technically I was wrong. The filter is designed to prevent dirty engine air from escaping backwards through the intake.
http://www.m5board.com/vbulletin/showpost....p;postcount=105