K&n air filter

[Jasow99]

Recently changed to k&n air filter for my ride c180k 2011. I tried driving it with the cover and without the cover. With cover - lesser throttle noise and lesser power. Anyone changed theirs and know if can don't cover it? Will thereby any damage for the engine?

[tsktsk]

From the way the air is routed from behind the front grill area if enclosed the source of air should have a cooler temperature while if left uncover may mean warmer air from engine bay will also be taken in. Guess no major issue if the air cleaner does what it's suppose to but without a dyno will be hard to know if any gain. If got will be insignificant would be my humble guess.

[Jasow99]

From the way the air is routed from behind the front grill area if enclosed the source of air should have a cooler temperature while if left uncover may mean warmer air from engine bay will also be taken in. Guess no major issue if the air cleaner does what it's suppose to but without a dyno will be hard to know if any gain. If got will be insignificant would be my humble guess.

Thanks! I'm just worry if the warmer air is not good for engine.

[Shadow]

Agreed that it is not advisable to go w/o cover .. changed to k&n in my previous pre-FL c200k, other than the warm air, I recalled the connection between and hose and filter was not very secured and the filter also became very dirty even with the cover on. I had previously also installed a Broquet Top Fueller 70, which gave better response but lesser on fuel saving as I was heavy footed. I moved it over to my 523i F10 when I changed my ride.

I had just removed the broquet recently when I sold it in end Jun 12, but has not found a suitable location in my new GS engine bay to install it .. bought it in Aug 10 from Autobac (with receipt) and only used around 60,000 km whilst it can last 400,000 km .. though price at Autobac has increased (special offer @ $944), willing to let go at $450 cash & carry .. for more details, please refer to the website www.broquet.com.sg

Let me know if you are interested : )

[MarkCWQ]

I'm also contemplating leaving the airbox cover open for the awesome moaning sound!

[leebo1215]

agreed

[MarkCWQ]

My only concern is that the filter isn't secured. If it is, I don't actually see any major concerns compared to other open pod filters.

[MarkCWQ]

Thanks! I'm just worry if the warmer air is not good for engine.

In theory, the warmer air isn't good for the engine but I don't see this method deferring too much from the open pod filter PH Trading is selling for the CGi engines. Is yours still open or have you closed it?

[Babolat]

Maybe heat shield the airbox will bring some extra ponies?

Guys where did you install your K&N filter? E-2011 in particular. Care to share the cost?

[MarkCWQ]

Maybe heat shield the airbox will bring some extra ponies?

Guys where did you install your K&N filter? E-2011 in particular. Care to share the cost?

Do check with our sponsors:

McWell:

Sonic Racing: http://www.sgmerc.com/topic/5136-kn-performance-air-filter/

[jon]

Camping.....

[MarkCWQ]

Camping.....

Jon, don't need to camp! Just go for it, remove the cover!

[jon]

Jon, don't need to camp! Just go for it, remove the cover!

Ya, going to remove later to try but have to put it back again cos i going for my 15k servicing this friday....

[WML888]

Maybe heat shield the airbox will bring some extra ponies?

Guys where did you install your K&N filter? E-2011 in particular. Care to share the cost?

I got it from Sonic, one of the site sponsor.

[jon]

In theory, the warmer air isn't good for the engine but I don't see this method deferring too much from the open pod filter PH Trading is selling for the CGi engines. Is yours still open or have you closed it?

BTW have you open up yours? If yes, did you just open up the cover or you also remove the funnel?

[Jasow99]

In theory, the warmer air isn't good for the engine but I don't see this method deferring too much from the open pod filter PH Trading is selling for the CGi engines. Is yours still open or have you closed it?

I left it open. Yours?

[Jasow99]

BTW have you open up yours? If yes, did you just open up the cover or you also remove the funnel?

Just left the cover open. I Asked the person from mcwell he said c180k cannot take out tunnel

[MarkCWQ]

Mine still close, does the filter need to be secured or all you need to do is to open the cover?

[Jasow99]

I just left the cover open.

[Jasow99]

Leave it*

[jon]

Alamak, my tool cannot open the cover... Need to buy a set leh

[MarkCWQ]

Alamak, my tool cannot open the cover... Need to buy a set leh

I'm gonna try later today, I think I have the tools for it. My only concern till this point is there's nothing securing the filter. Don't want it to move out of place and some foreign object enter the engine.

[jon]

I'm gonna try later today, I think I have the tools for it. My only concern till this point is there's nothing securing the filter. Don't want it to move out of place and some foreign object enter the engine.

Yaya, need to see if the filter is tight fit or not... Let me know later k

[MarkCWQ]

Yaya, need to see if the filter is tight fit or not... Let me know later k

The rubber holds the filter in place, seems enough to secure it as the filter still sits in the holder. Drove one round in my estate, filter still in position. But the sound it makes, oh my! Moaning... Sound with and without cover is like night and day.

[blackmercs]

Any ideas why there is a cover for the filter? Any expert here can share with us?