Replacement air filter for f30 320d wanted. Help.

shiven-zn

Member
Guys any suggestions or any other f30 320d owners bought, used, have changed their oem air filters to other brands like bmc or k&N .
Also who has stock of these.
My car is also due for 105 000 km service soon so I want to get a good quality filter.

Thank you in advance for your invaluable advice gentlemen :praise:.
 

Skywalker325i

New member
I recently changed out my stock filter for a K&N drop-in, this was unfortunately an E92 325i application. I bought it from ATS Motorsports.
 

AshG108

///Member
shiven-zn said:
Guys any suggestions or any other f30 320d owners bought, used, have changed their oem air filters to other brands like bmc or k&N .
Also who has stock of these.
My car is also due for 105 000 km service soon so I want to get a good quality filter.

Thank you in advance for your invaluable advice gentlemen :praise:.

Shiv - I got mine from Autostyle, they ordered it in for me. Other place that had was IS Motorsport and they also had an order period turn around of about 2 days or so if they knew the supplier had.
 

Gizmo

Banned
shiven-zn said:
Guys any suggestions or any other f30 320d owners bought, used, have changed their oem air filters to other brands like bmc or k&N .
Also who has stock of these.
My car is also due for 105 000 km service soon so I want to get a good quality filter.

Thank you in advance for your invaluable advice gentlemen :praise:.
Stick with the OEM paper/foam filter as it filters the best. Less contaminants get into you motor oil so that lasts longer and does it's job better. Better quality oil in your motor will give you better MPG and you will prolong the life of your turbo and engine.
 

Morras12

Active member
I have a 2013 f20 120d, on stage 2, and had a Tweek Performance Filter made for it. They should now stock it as they used my stock one as a mold. Car was still stage 1 when I got it but believe it or not it actually made a big difference. I gained about 2kw and 10nm. Can confirm this with proof of dyno sheets. Havent Dyno'd the car after downpipe and stage 2 file.

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Morras12 said:
I have a 2013 f20 120d, on stage 2, and had a Tweek Performance Filter made for it. They should now stock it as they used my stock one as a mold. Car was still stage 1 when I got it but believe it or not it actually made a big difference. I gained about 2kw and 10nm. Can confirm this with proof of dyno sheets. Havent Dyno'd the car after downpipe and stage 2 file.

9faffd4f5801b5735cee433353e0fcbb.jpg

adfed42f1296f6a703c7c60947037cdc.jpg

7477e5d93dcd4b406db9eca111a00c57.jpg

968d45ab4d9895e3c0e5f8d7950ab2a6.jpg


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I dont know why the quality on the last dyno sheet is that bad but the figures are 166.7kw and 467nm.
 

Morras12

Active member
M135i said:
The ambient correction on the second dyno sheet looks different to the first?

Correct. the first one is -2% and second -4%, so it could be that the second one should have more power if it was also -2% if I'm not mistaken?

Don't know why Dynotec does it, the ambient on Dyno days, which was where I got the second one, is always -4/-5%.... If you take it to them in the week its always either 0 or -2%.
 

Dre

Member
I replaced mine with a BMC drop-in...it's great but it does sound louder. I suspect that's because the stock has a cotton-wool layer which insulates the sound.

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shiven-zn

Member
Dre said:
I replaced mine with a BMC drop-in...it's great but it does sound louder. I suspect that's because the stock has a cotton-wool layer which insulates the sound.

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Where did you buy it from bro. :coolShake:
 

Dre

Member
From Autostyle in Umhlanga. You can confirm the exact part# via the BMC website (but Autostyle will also do that for you)

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shiven-zn

Member
Dre said:
From Autostyle in Umhlanga. You can confirm the exact part# via the BMC website (but Autostyle will also do that for you)

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No stock bro ... they say hopefully next month
 

Dre

Member
Darn, I did buy mine last month...and it was the last one in stock. Sorry bud

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Have you tried Max Motorsport?

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