K&N air filter better then stock?
- Thread starter Purefate
- Start date
jinooi
Well-Known Member
Re: K&N air filter better then stock?
what rubbish!
the advantage of K&N is that it is reusable - all you have to do is clean it when it gets dirty (a cleaning kit is available). any reliable workshop will be able to clean it for you too.
stock filters will have to be thrown away and new ones bought to replace it.
and according to the product claims, K&N allows for better airflow too, which in turn will give you more power.
in terms of K&N getting dirty faster, totally baseless...
what rubbish!
the advantage of K&N is that it is reusable - all you have to do is clean it when it gets dirty (a cleaning kit is available). any reliable workshop will be able to clean it for you too.
stock filters will have to be thrown away and new ones bought to replace it.
and according to the product claims, K&N allows for better airflow too, which in turn will give you more power.
in terms of K&N getting dirty faster, totally baseless...
Re: K&N air filter better then stock?
I used K&N panel filter before. The difference in throttle response is immediately noticeable. But this comes at a price. The ducting after the MAF has a film of dirt on it and soon my throttle body started sticking. Looks like K&N allows very fine particles thru - not enough to damage the engine. But the oil from the filter sticks everywhere along the path of the airflow and dust sticks with it as well. I'm back to paper filter and change them often.
I used K&N panel filter before. The difference in throttle response is immediately noticeable. But this comes at a price. The ducting after the MAF has a film of dirt on it and soon my throttle body started sticking. Looks like K&N allows very fine particles thru - not enough to damage the engine. But the oil from the filter sticks everywhere along the path of the airflow and dust sticks with it as well. I'm back to paper filter and change them often.
Re: K&N air filter better then stock?
Its hard to determine whether its overoiled or not. I only did one pass with the spray then let it sit on crushed newspaper to soak up any excess. In any case the filter is pretty much toast now. At the last change I noticed a puncture in the wire gause, which in turn made a hole in the fabric. Don't know what it was it sucked up.
Its hard to determine whether its overoiled or not. I only did one pass with the spray then let it sit on crushed newspaper to soak up any excess. In any case the filter is pretty much toast now. At the last change I noticed a puncture in the wire gause, which in turn made a hole in the fabric. Don't know what it was it sucked up.
Re: K&N air filter better then stock?
Paper is actually more difficult to puncture because the folds are deeper. The folds on the K&N are like straightened out thus making it more vulnerable to high velocity projectiles like a beetle getting sucked in at 5000 rpm.
I've been back to OEM filters for over 2 years now. I change the filter at every 2 oil changes whether or not its clogged.tjy;472647 said:
Paper is actually more difficult to puncture because the folds are deeper. The folds on the K&N are like straightened out thus making it more vulnerable to high velocity projectiles like a beetle getting sucked in at 5000 rpm.
tjy
Well-Known Member
Re: K&N air filter better then stock?
can buy the K&N cleaning kit and clean yourself.. i believe it should be under $30... what type of filter are you using ?? drop in filter or cone type?? if is drop in, it is damnn easy to remove .. or wat u can do is to ask the person to clean it for you during servicing... but some of them actually don't oil it for you. They just use the air jet to spray it clean.. but u will be able to see how they remove it
..
can buy the K&N cleaning kit and clean yourself.. i believe it should be under $30... what type of filter are you using ?? drop in filter or cone type?? if is drop in, it is damnn easy to remove .. or wat u can do is to ask the person to clean it for you during servicing... but some of them actually don't oil it for you. They just use the air jet to spray it clean.. but u will be able to see how they remove it
..
Hon
Well-Known Member
Re: K&N air filter better then stock?
I bought the cleaning kit. Reach home happily pop open the bonnet, locate the airbox and start staring at it hard. No idea which screws to loosen.
No idea what is drop-in or cone type, I can't see anything beneath the airbox. I'm driving a E90 320i.
I bought the cleaning kit. Reach home happily pop open the bonnet, locate the airbox and start staring at it hard. No idea which screws to loosen.
No idea what is drop-in or cone type, I can't see anything beneath the airbox. I'm driving a E90 320i.
tjy
Well-Known Member
Re: K&N air filter better then stock?
bro.. i not on e90.. so can't guide u..
but here's a link.. dunno if yours is the same or not... U can just do a search and you might be able to find the right way
DIY: Air Filter Replacement - 325 (2.5litre) - BMW 3-Series (E90 E92) Forum - E90Post.com
bro.. i not on e90.. so can't guide u..
but here's a link.. dunno if yours is the same or not... U can just do a search and you might be able to find the right way
DIY: Air Filter Replacement - 325 (2.5litre) - BMW 3-Series (E90 E92) Forum - E90Post.com
dreammaker
Well-Known Member
Re: K&N air filter better then stock?
I just change my stock filter to a K&N filter this morning. For E90 320i it is cone type.
Stock filter was very dirty....after changing to K&N I can feel that the engine is more responsive
I just change my stock filter to a K&N filter this morning. For E90 320i it is cone type.
Stock filter was very dirty....after changing to K&N I can feel that the engine is more responsive
Hon;473087 said:
Re: K&N air filter better then stock?
if using K&N filter, its not recommended to use the air jet/compressed oil to clean/dry the filter
as it may damaged the cotton fabric of the K&N filter...
K&N Air Filter Cleaning Instructions
tjy;472789 said:can buy the K&N cleaning kit and clean yourself.. i believe it should be under $30... what type of filter are you using ?? drop in filter or cone type?? if is drop in, it is damnn easy to remove .. or wat u can do is to ask the person to clean it for you during servicing... but some of them actually don't oil it for you. They just use the air jet to spray it clean.. but u will be able to see how they remove it
if using K&N filter, its not recommended to use the air jet/compressed oil to clean/dry the filter
as it may damaged the cotton fabric of the K&N filter...
K&N Air Filter Cleaning Instructions
achee
Well-Known Member
Re: K&N air filter better then stock?
How long did you last changed your stock filter?dreammaker;473338 said:I just change my stock filter to a K&N filter this morning. For E90 320i it is cone type.
Stock filter was very dirty....after changing to K&N I can feel that the engine is more responsive
dreammaker
Well-Known Member
Re: K&N air filter better then stock?
I don't think it wasn't changed...
I don't think it wasn't changed...
achee;473537 said:
